Mbpp/771

 """
Write a function to check if the given expression is balanced or not. 
assert check_expression("{()}[{}]") == True
"""
 

solution

 
from collections import deque
def check_expression(exp):
    if len(exp) == 0 or len(exp) % 2 == 1:
        return False
    stack = deque()
    for ch in exp:
        if ch == '(' or ch == '{' or ch == '[':
            stack.append(ch)
        if ch == ')' or ch == '}' or ch == ']':
            if not stack:
                return False
            top = stack.pop()
            if (top == '(' and ch != ')') or (top == '{' and ch != '}' or (top == '[' and ch != ']')):
                return False
    return not stack
 

base input

 [['{()}[{}]'], ['{()}[{]'], ['{()}[{}][]({})']] 

plus input

 [[''], ['(((())()))()'], ['{[{[()]}]}'], ['(((())()))(){[{[()]}]}'], ['(((())()))(()'], ['(((())()(((())()))(()))(){[{[()]}]}'], ['{[{[()]}](((())()))(()}'], ['(((())()(((()){[{[()]}](((())()))(()}()))(()))(){[{[()]}]}'], ['(((())()(((()){[{[()]}](((())()]}'], ['(((())()(((()){[{[()]}](((()))(()}()))(()))(){[{[()]}]}'], ['((((())()(((()){[{[()]}]((((()))(()}()))(()))(){[{[()]}]}'], ['(((())()(((()){[{[()]}](((())()))(()}()))(()))(){[{[()(((())()(((()){[{[(()]}](((()))(()}()))(()))(){[{[()]}]}]}]}'], ['(((())()((((((((())()(((()){[{[()]}](((())()]}))()))(()))(){[{[()]}]}'], ['((){[{[()(((())()(((()){[{[(()]}](((()))(()}()))(()))(){[{[()]}]}]}]}'], ['(((())()(((()){[{[()]}](((())()))())(){[{[()]}]}'], ['((((())()))()((())())(()'], ['(((())()((((((((())()(((()){[{[()]}](((())()]}))()))(()))()]{[{[()]}]}'], ['(((())()((((((((())()(((()){[{[()]}(((())()(((()){[{[()]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}'], ['((((())()(((()){[{[()]}]((((()))(()}()((((())()(((()){[{[()]}]((((()))(()}()))(()))(){[{[()]}]}'], ['(((())())))()'], ['(((())()((((((((())()(((()]){[{[()]}](((())()]}))()))(()))(){[{[()]}]}'], ['ws'], ['(((())())(((()){[{[()]}](((())()))())(){[{[()]}]}'], ['((){[{[()(((())()(((()){[{[(()]}](((()))(()}()))(())))(){[{[()]}]}]}]}'], ['(((())()(((()){[{[()]}](((())()))())(){[{[())]}]}'], ['((){[{[()(((())()(((()){[{[(()]}](((()))(()}()))(())))(){[(((())()((((((((())()(((()){[{[()]}(((())()(((()){[{[()]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}{[()]}]}]}]}'], ['{[[{[()]}](((())()))(()}'], ['(((())()))(()ws'], ['((((())()(((()){[{[()]}]((((()))(()}((((())()(((()){[{[()]}]((((()))(()}()((((())()(((()){[{[()]}]((((()))(()}()))(()))(){[{[()]}]}{[{[()]}]}'], [']){[{[()]}]}'], ['((){[{[()(((}())()(((()){[{[(()]}](((()))(()}()))(())))(){((((())()(((()){[{[()]}]((((()))(()}()))(()))(){[{[()]}]}[(((())()((((((((())()(((()){[{[()]}(((())()(((()){[{[()]}(((())()((((((((())()(((()){[{[()]}](((())()]}))()))(()))(){[{[()]}]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}{[()]}]}]}]}'], ['(()(())()(((())()))(())){(){[{[()]}]}'], ['(((())()((((((((())()(((()){[{[()]}](((()((((())()))()((())())(())))(()))()]{[{[()]}]}'], ['{[{[()](((())()))(()}'], ['((((())()(((()){[{[()]}]((((()))(()}()((((())()(((())((((())()))()((())())((){[{[()]}]((((()))(()}()))(()))(){[{[()]}]}'], ['{[{[()](((())()))(ws()}'], ['(((()(()ws'], ['(((())()(((()){[{[()]}](((())()((){[{[()(((())()(((()){[{[(()]}](((()))(()}()))(())))(){[(((())()((((((((())()(((()){[{[()]}(((())()(((()){[{[()]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}{[()]}]}]}]}))())(){[{[()]}]}'], ['((){[{[()(((}())()(((()){[{[(()](((())()(((()){[{[()]}](((())()((){[{[()(((())()(((()){[{[(()]}](((()))(()}()))(())))(){[(((())()((((((((())()(((()){[{[()]}(((())()(((()){[{[()]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}{[()]}]}]}]}))())(){[{[()]}]}}](((()))(()}()))(())))(){((((())()(((()){[{[()]}]((((()))(()}()))(()))(){[{[()]}]}[(((())()((((((((())()(((()){[{[()]}(((())()(((()){[{[()]}(((())()((((((((())()(((()){[{[()]}](((())()]}))()))(()))(){[{[()]}]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}{[()]}]}]}]}'], ['(((((())()(((()){[{[()]}]((((()))(()}()((((())()(((())((((())()))()((())())((){[{[()]}]((((()))(()}()))(()))(){[{[()]}]}'], ['((){[{[()(((())()(((()){[{[(()]}](((()))(()}()))(()))(){[{[()]}]}]}]}(((())()(((()){[{[()]}](((())()))())(){[{[()]}]}'], ['vBMc'], ['((){[{[()(((())()(((()){[{[(()]}](((()))(()}()))(())))(){[(((())()((((((((())()(((()){[{[()]}(((()()()(((()){[{[()]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}{[()]}]}]}]}'], ['(((((())()(((()){[{[()]}]((((()))(()}()((((())()(((())((((())()))()((())())vBMc((){[{[()]}]((((()))(()}()))(()))(){[{[()]}]}'], ['((){[{[()(((())()(((()){[{[(()]}](((()))(()}()))(())))()()]}]}]}]}'], ['EOLG'], ['Wofi'], ['(((())()(((()){[{[()]}](((())()))(){[{[()]}]})(){[{[())]}]}'], ['((){[{[()(((())()(((()){[{[(()]}]}{[()]}]}]}]}'], ['(((())()(([()]}](((()))(()}()))(()))(){[{[()]}]}'], ['w{[{[()](((())()))(ws()}s'], ['vvBMMc'], ['{[[{[()]}](((())()((((((((())()(((()){[{[()]}](((())()]}))()))(()))()]{[{[()]}]}(((())()))(()}'], ['(((())()((){[{[()(((}())()(((()){[{[(()](((())()(((()){[{[()]}](((())()((){[{[()(((())()(((()){[{[(()]}](((()))(()}()))(())))(){[(((())()((((((((())()(((()){[{[()]}(((())()(((()){[{[()]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}{[()]}]}]}]}))())(){[{[()]}]}}](((()))(()}()))(())))(){((((())()(((()){[{[()]}]((((()))(()}()))(()))(){[{[()]}]}[(((())()((((((((())()(((()){[{[()]}(((())()(((()){[{[()]}(((())()((((((((())()(((()){[{[()]}](((())()]}))()))(()))(){[{[()]}]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}{[()]}]}]}]}((((((((())()(((()){[{[()]}](((())()]}))()))(()))(){[{[()]}]}'], ['(((())()((((((((())()(((()){[{[()]}](((())()]}))()))(()))())]{[{[()]}]}'], ['(((())()(((()){[{[()]}](((())()))(()}()))(()))(){[{((){[{[()(((())()(((()){[{[(()]}](((()))(()}()))(())))(){[(((())()((((((((())()(((()){[{[()]}(((()()()(((()){[{[()]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}{[()]}]}]}]}[()]}]}'], ['((){[vMMc()(((())()(((()){[{[(()]}]}{[()]}]}]}]}'], ['(((())()(((()){[{[()]}](((())()))())()){[{[()]}]}'], ['(((())())(((()){[{[()]}](((())()))())((((())()(((()){[{[()]}]((((()))(()}()((((())()(((())((((())()))()((())())((){[{[()]}]((((()))(()}()))(()))(){[{[()]}]}(){[{[()]}]}'], ['(((())())))())'], ['((){[{[()(((())()(((()){[{)[(()]}](((()))(()}()))(())))(){[(((())()((((((((())()(((()){[{[()]}(((())()(((()){[{[()]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}{[()]}]}]}]}'], ['(((((((())())))()))()))(()'], ['(((((((())()(((())())))()))))()))()))(()'], ['(()(())()(((())()))((]}'], ['(((()vvBMMc)()(((()){[{[()]}](((())()))())(){[{[()]}]}'], ['(((())()(((((((((())()(((()]){[{[()]}](((())()]}))()))(()))(){[{[()]}]}'], ['(((())()((((((((())()(((()){[{[()]}(((())()(((()){[{[()]}](((())()]}](((())((((())()(((()){[{[()]}]((((()))(()}((((())()(((()){[{[()]}]((((()))(()}()((((())()(((()){[{[()]}]((((()))(()}()))(()))(){[{[()]}]}{[{[()]}]}}]}'], ['{[{[()](((())(()))(()}'], ['((){[{[()(((())()(((()){[{[(()]((){[{[()(((}())()(((()){[{[(()](((())()(((()){[{[()]}](((())()((){[{[()(((())()(((()){[{[(()]}](((()))(()}()))(())))(){[(((())()((((((((())()(((()){[{[()]}(((())()(((()){[{[()]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}{[()]}]}]}]}))())(){[{[()]}]}}](((()))(()}()))(())))(){((((())()(((()){[{[()]}]((((()))(()}()))(()))(){[{[()]}]}[(((())()((((((((())()(((()){[{[()]}(((())()(((()){[{[()]}(((())()((((((((())()(((()){[{[()]}](((())()]}))()))(()))(){[{[()]}]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}{[()]}]}]}]}}](((()))(()}()))(()))(){[{[()]}]}]}]}'], ['(((((())()(((()){[{[()]}]((((()))(()}()((((())()(((())((((())()))()((())())(()))(()))(){[{[()]}]}'], ['(((())()(((())()))(()))(){[{[)]}]}'], ['(((((())()()((()){[{[()]}]((((()))(()}()((((())()(((())((((())()))()((())())vBMc((){[{[()]}]((((()))(()}()))(()))(){[{[()]}]}'], ['(((((())()()((()){[{[()]}]((((()))(()}()((((())()(((())((((())()))()((())())vBMc((){[{[()]}]((((()))(()}()))(()))()({[{[()]}]}'], ['RO'], ['(((())()(((()){[{[()]}](((()))(()}()))(()))(){[{[)()]}]}'], ['(((()(((())()(((()){[{[()]}](((()))(()}()))(()))(){[{[)()]}]})()))((()(())()(((())()))(())){(){[{[()]}]})'], ['(((())()((((((((())()(((()){[{[()]}(((())()(((()){[{[()]}](((())()]}](((())()]}(((())()))()))()))(()))(){[{[()]}]}'], ['(((())()(((()){((){[{[()(((())()(((()){[{[(()]}](((()))(()}()))(())))(){[(((())()((((((())()(((()){[{[()]}](((())()))())()){[{[()]}]}(((((())()(((()){[{[()]}(((())()(((()){[{[()]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}{[()]}]}]}]}{[{[()]}]}'], ['((){[{)[()(((())()(((((())()(((()){[{[()]}](((())()]}(()){[{[(()]}](((()))(()}()))(()))(){[{[()]}]}]}]}'], ['(((())()(((()){[{[()]}](((((())()))(){[{[()]}]}(())()))())()){[{[()]}]}'], ['((){[{[()(((}())()(((()){[{[(()](((())()(((()){[{[()]}](((())()((){[{[()(((())()(((()){[{[(()]}](((()))(()}()))(())))(){[(((())()((((((((())()(((()){[{[()]}(((())()(((()){[{[()]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}{[()]}]}]}]}))())(){[{[()]}]}}](((()))(()}()))(())))(){((((())()(((()){[{[()]}]((((()))(()}()))(()))(){[{[()]}]}[(((}]}]}'], ['(((()vvBMMc)()(((()){[{[()]}](((())()))())(){[{[()]}{[{[()](((())()))(ws()}]}'], ['(((())()(((())(()(())()(((())())(((((((())()(((())())))()))))()))(()))(())((]}({[{[()]}](((())()]}'], ['EOLG(((())()(((()){[{[()]}](((()))(()}()))(()))(){[{[()]}]}'], ['(((()(((())()(((()){[{[()]}](((()))(()}()))(()))(){[{[)()]}]})()))((()(())()((((())()))(())[){(){[{[()]}]})'], ['((){[{[()(((())()(((()){[{[(()]}](((()))(()}()(((())()))(()))(())))(){[{[()]}]}]}]}'], ['(((())()((((((((())()(((()){[{[()]}](((())()]}))()))(()))(){(((())())))()[{[()]}]}'], ['(()(())()(((())()))((]'], ['((){[{[()(((())()()((()){[{[(()]}](((()))(()}()(((())()))(()))(())))(){[{[()]}]}]}]}'], ['{[{[()]}](((()])()))(()}'], ['{[{[()]}](((()]{)()))(()}'], ['((){[{[()(((}())()(((()){[{[(()](((())()(((()){[{[()]}](((())()((){[{[()(((())()(((()){[{[(()]}}](((()))(()}()))(())))(){[(((())()((((((((())()(((()){[{[()]}(((())()(((()){[{[()]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}{[()]}]}]}]}))())(){[{[()]}]}}](((()))(()}()))(())))(){((((())()(((()){[{[()]}]((((()))(()}()))(()))(){[{[()]}]}[(((}]}]}'], ['(((())()(((())(()(()())())(((((((())()(((())())))()))))()))(()))(())((]}({[{[()]}](}((())()]}'], ['(((())()(((())()))(()))()(((())()((){[{[()(((}())()(((()){[{[(()](((())()(((()){[{[()]}](((())()((){[{[()(((())()(((()){[{[(()]}](((()))(()}()))(())))(){[(((())()((((((((())()(((()){[{[()]}(((())()(((()){[{[()]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}{[()]}]}]}]}))())(){[{[()]}]}}](((()))(()}()))(())))(){((((())()(((()){[{[()]}]((((()))(()}()))(()))(){[{[()]}]}[(((())()((((((((())()(((()){[{[()]}(((())()(((()){[{[()]}(((())()((((((((())()(((()){[{[()]}](((())()]}))()))(()))(){[{[()]}]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}{[()]}]}]}]}((((((((())()(((()){[{[()]}](((())()]}))()))(()))(){[{[()]}]}{[{[)]}]}'], ['(()(())()(((())())))((]'], ['{[{[()]}](((((((())()))()((())())(()())()))(()}'], ['EOLG(((())()(((()(((())()(((()){[{[()]}](((()))(()}()))(()))(){[{[)()]}]}){[{[()]}](((()))(()}()))(())[)(){[{[()]}]}'], ['(((())()(((((((((())()(((()]){[{[()]}](()(())()]}))()))(()))(){(((())()(((()){[{[()]}](((()))(()}()))(()))(){[{[()]}]}[{[()]}]}'], ['(((())()(((())(()(()())())(((((())()((((((((())()(((()){[{[()]}](((())()]}))()))(()))()]{[{[()]}]}(((((())()(((())())))()))))()))(()))(())((]}({[{[()]}](}((())()]}'], ['(((())((((()vvBMMc)()(((()){[{[()]}](((())()))())(){[{[()]}]})))()'], ['(((())()(((()){[{[()]}](((((())()))(){[{[()]})]}(())()))())()){[{[()]}]}'], ['((){[{[()(((())()(((()){[{)[(()]}](((()))(()}()))(())))(){[(((())()((((((((())()(((()){[{[()]}(((())()(((()){[{[()]}](((())()]}](((())()]}))()))(()))(){[{[()]}]}{[()]}Wofi]}]}]}'], ['(((())()(((()){[{[()]}](((())()))(())(){[{[())]}]']] 

Generations

code-llama-multi-7b. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""


def check_expression(expression):
    stack = []
    for char in expression:
        if char == '(' or char == '[' or char == '{':
            stack.append(char)
        elif char == ')':
            if len(stack) == 0 or stack.pop() != '(':
                return False
        elif char == ']':
            if len(stack) == 0 or stack.pop() != '[':
                return False
        elif char == '}':
            if len(stack) == 0 or stack.pop() != '{':
                return False
    return len(stack) == 0


if __name__ == '__main__':
    print(check_expression("{()}[{}]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
    print(check_expression("{()}[{]"))
   

databricks--dbrx-instruct. fail_base: False, fail_plus: True

  def check_expression(expression):
    stack = []
    dict_brackets = {"]":"[", "}":"{", ")":"("}
    for char in expression:
        if char in dict_brackets:
            top_element = stack.pop() if stack else '#'
            if dict_brackets[char] != top_element:
                return False
        else:
            stack.append(char)
    return not stack
assert check_expression("{()}[{}]") == True
assert check_expression("{([)]}") == False
assert check_expression("{([])}") == True
assert check_expression("((()))") == True
assert check_expression("(())") == True
assert check_expression("([)]") == False
assert check_expression("{")]") == False

CohereForAI--c4ai-command-r-plus. fail_base: False, fail_plus: True

  def check_expression(expression: str) -> bool:
    stack = []
    brackets = {")": "(", "]": "[", "}": "{"}

    for char in expression:
        if char in brackets.values():
            stack.append(char)
        elif char in brackets.keys():
            if not stack or brackets[char] != stack.pop():
                return False
    return not stack
```

claude-3-haiku-20240307. fail_base: False, fail_plus: True

  Here's the solution wrapped in a Python markdown block:

```python
def check_expression(expression):
    stack = []
    for char in expression:
        if char in ["{", "(", "["]:
            stack.append(char)
        else:
            if not stack:
                return False
            current_char = stack.pop()
            if current_char == "(":
                if char != ")":
                    return False
            if current_char == "{":
                if char != "}":
                    return False
            if current_char == "[":
                if char != "]":
                    return False
    if stack:
        return False
    return True

assert check_expression("{()}[{}]") == True

code-millenials-34b. fail_base: False, fail_plus: True

  def check_expression(expr):
    stack = []

    # iterate over the expression
    for char in expr:
        if char in ["(", "{", "["]:
            # push to stack if it's an opening bracket
            stack.append(char)
        elif char in [")", "}", "]"]:
            # if stack is empty, expression is not balanced
            if not stack:
                return False
            
            # if it's a closing bracket, pop the opening bracket from stack
            opening_bracket = stack.pop()

            # check if the popped opening bracket matches with the closing bracket
            if (char == ")" and opening_bracket != "(") or \
               (char == "}" and opening_bracket != "{") or \
               (char == "]" and opening_bracket != "["):
                return False

    # if stack is not empty at the end, expression is not balanced
    return not stack

assert check_expression("{()}[{}]") == True

dolphin-2.6. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""
def check_expression(expression):
    stack = []
    opening_brackets = ['(', '[', '{']
    closing_brackets = [')', ']', '}']
    bracket_pairs = {')': '(', ']': '[', '}': '{'}

    for char in expression:
        if char in opening_brackets:
            stack.append(char)
        elif char in closing_brackets:
            if not stack or stack.pop() != bracket_pairs[char]:
                return False

    return not stack

claude-3-opus-20240229. fail_base: False, fail_plus: True

  Here's the code to solve the problem of checking if a given expression has balanced parentheses, wrapped in a Python markdown block:

```python
def check_expression(expression):
    stack = []
    opening_brackets = ['{', '(', '[']
    closing_brackets = ['}', ')', ']']
    
    for char in expression:
        if char in opening_brackets:
            stack.append(char)
        elif char in closing_brackets:
            if not stack:
                return False
            if opening_brackets.index(stack.pop()) != closing_brackets.index(char):
                return False
    
    return len(stack) == 0

# Test the function
assert check_expression("{()}[{}]") == True
assert check_expression("({[]})") == True
assert check_expression("({[}])") == False
assert check_expression("([]") == False

mixtral-8x7b-instruct. fail_base: False, fail_plus: True

  def check_expression(expression):
    stack = []
    opening_symbols = ["[", "{", "("]
    closing_symbols = ["]", "}", ")"]
    symbol_map = {closing_symbols[i]: opening_symbols[i] for i in range(3)}

    for symbol in expression:
        if symbol in opening_symbols:
            stack.append(symbol)
        elif symbol in closing_symbols:
            if stack == [] or stack.pop() != symbol_map[symbol]:
                return False

    return stack == []

# Test cases
assert check_expression("{()}[{}]") == True
assert check_expression("([)]") == False
assert check_expression("{[]}") == True
assert check_expression("{([()])}") == True
assert check_expression("((({})")) == False

wizardcoder-34b. fail_base: False, fail_plus: True

  Here's a Python function that checks if a given expression is balanced or not:

```python
def check_expression(expression):
    stack = []
    # Dictionary of opening and closing brackets
    brackets = {'}': '{', ']': '[', ')': '('}
    # Loop through each character in the expression
    for char in expression:
        # If the character is an opening bracket, push it onto the stack
        if char in brackets.values():
            stack.append(char)
        # If the character is a closing bracket, check if it matches the last opening bracket in the stack
        elif char in brackets.keys():
            if not stack or brackets[char] != stack.pop():
                return False
    # If the stack is empty at the end, the expression is balanced
    return not stack
```

We use a stack to keep track of the opening brackets as we iterate through the expression. When we encounter an opening bracket, we push it onto the stack. When we encounter a closing bracket, we check if it matches the last opening bracket in the stack. If it does, we pop the opening bracket off the stack. If it doesn't, we return False because the expression is not balanced. If we make it through the entire expression and the stack is empty, the expression is balanced.

We can test the function with the given example:

```python
assert check_expression("{()}[{}]") == True
```

This should return True since the expression is balanced. 

mixtral-8x22b-instruct-v0.1. fail_base: False, fail_plus: True

  def check_expression(expression):
    """
    This function checks if the given expression is balanced or not.
    It assumes that the expression consists of the following characters:
    '(', ')', '{', '}', '[', ']'
    """
    opening_brackets = ['(', '{', '[']
    closing_brackets = [')', '}', ']']
    stack = []

    for char in expression:
        if char in opening_brackets:
            stack.append(char)
        elif char in closing_brackets:
            if not stack:
                return False
            opening_bracket = stack.pop()
            if not (opening_brackets.index(opening_bracket) == closing_brackets.index(char)):
                return False

    return not stack

# Test the function
assert check_expression("{()}[{}]") == True
assert check_expression("{([)]}") == False
assert check_expression("{()}[]") == True
assert check_expression("{") == False
assert check_expression("}") == False
assert check_expression("") == True

code-llama-multi-34b. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""


def check_expression(expression):
    stack = []
    for char in expression:
        if char in "({[":
            stack.append(char)
        elif char in ")}]":
            if not stack:
                return False
            if char == ")" and stack[-1] != "(":
                return False
            if char == "}" and stack[-1] != "{":
                return False
            if char == "]" and stack[-1] != "[":
                return False
            stack.pop()
    return not stack

Qwen--Qwen1.5-72B-Chat. fail_base: False, fail_plus: True

  def check_expression(expression):
    stack = []
    brackets = {")": "(", "}": "{", "]": "["}
    for char in expression:
        if char in brackets.values():
            stack.append(char)
        elif char in brackets.keys():
            if not stack or stack.pop() != brackets[char]:
                return False
    return not stack

# Test cases
assert check_expression("{()}[{}]") == True
assert check_expression("({[}]") == False
assert check_expression("({)}") == False
assert check_expression("[](){}") == True

mistral-large-latest. fail_base: False, fail_plus: True

  Sure, here is a Python function that checks if the given expression is balanced or not:

```python
def check_expression(expression):
    stack = []
    mapping = {")": "(", "}": "{", "]": "["}

    for char in expression:
        if char in mapping:
            top_element = stack.pop() if stack else '#'
            if mapping[char] != top_element:
                return False
        else:
            stack.append(char)

    return not stack
```

This function works by iterating over each character in the expression. If the character is a closing bracket (`, ", or }`), it checks if the top element of the stack is the corresponding opening bracket. If it's not, the function returns `False`. If the character is an opening bracket, it's pushed onto the stack. At the end, if the stack is not empty, the function returns `False`, indicating that the expression is not balanced.

You can test the function with your assert statement:

```python
assert check_expression("{()}[{}]") == True
```

This function assumes that the input is a string of only brackets. If the input can contain other characters, you may need to add some additional checks.

codegen-2b. fail_base: True, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""

# def check_expression(exp):
#     stack = []
#     for i in exp:
#         if i == '(' or i == '[' or i == '{':
#             stack.append(i)
#         elif i == ')' or i == ']' or i == '}':
#             if len(stack) == 0:
#                 return False
#             if i == ')' and stack[-1] == '(':
#                 stack.pop()
#             elif i == ']' and stack[-1] == '[':
#                 stack.pop()
#             elif i == '}' and stack[-1] == '{':
#                 stack.pop()
#             else:
#                 return False
#     if len(stack) == 0:
#         return True
#     else:
#         return False

# def check_expression(exp):
#     stack = []
#     for i in exp:
#         if i == '(' or i == '[' or i == '{':
#             stack.append(i)
#         elif i == ')' or i == ']' or i == '}':
#             if len(stack) == 0:
#                 return False
#             if i == ')' and stack[-1] == '(':
#                 stack.pop()
#             elif i == ']' and stack[-1] == '[':
#                 stack.pop()
#             elif i == '}' and stack[-1] == '{':
#                 stack.pop()
#             else:
#                 return False
#     if len(stack) == 0:
#         return True
#     else:
#         return False

# def check_expression(exp):
#     stack = []
#     for i in exp:
#         if i == '(' or i == '[' or i == '{':
#             stack.append(i)
#         elif i == ')' or i == ']' or i == '}':
#             if len(stack) == 0:
#                 return False
#             if i == ')' and stack[-1] == '(':
#                 stack.pop()

HuggingFaceH4--starchat2-15b-v0.1. fail_base: False, fail_plus: True

  def check_expression(expr):
    stack = []
    opening = set(['(', '{', '['])
    matches = set([('(', ')'), ('{', '}'), ('[', ']')])

    for char in expr:
        if char in opening:
            stack.append(char)
        else:
            if not stack:
                return False
            last_open = stack.pop()
            if (last_open, char) not in matches:
                return False

    return len(stack) == 0

# Test cases
assert check_expression("{()}[{}]") == True
assert check_expression("{{[()]}}") == True
assert check_expression("{{[()]}") == False
assert check_expression("{{[()]}}}") == False
assert check_expression("{{[()}}") == False

codegemma-7b. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""

import unittest
from collections import deque
from typing import Deque


def check_expression(expression: str) -> bool:
    """
    Time complexity: O(n)
    Space complexity: O(n)
    """
    if not expression:
        return True

    stack: Deque = deque()
    for char in expression:
        if char in "({[":
            stack.append(char)
        else:
            if not stack:
                return False
            if char == "}" and stack[-1] != "{":
                return False
            if char == ")" and stack[-1] != "(":
                return False
            if char == "]" and stack[-1] != "[":
                return False
            stack.pop()
    return not stack


class TestCheckExpression(unittest.TestCase):
    def test_check_expression(self):
        self.assertTrue(check_expression("{()}[{}]"))
        self.assertTrue(check_expression("()[]{}"))
        self.assertTrue(check_expression("()[]"))
        self.assertTrue(check_expression("()"))
        self.assertTrue(check_expression("()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()

code-llama-multi-13b. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""


def check_expression(expression):
    """
    :param expression:
    :return:
    """
    stack = []
    for char in expression:
        if char in "({[":
            stack.append(char)
        elif char in ")}]":
            if not stack:
                return False
            if char == ")" and stack[-1] != "(":
                return False
            if char == "}" and stack[-1] != "{":
                return False
            if char == "]" and stack[-1] != "[":
                return False
            stack.pop()
    return not stack


if __name__ == "__main__":
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{]") == False
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{

deepseek-coder-6.7b-instruct. fail_base: False, fail_plus: True

  Here is the Python function in a markdown style code block:

```python
def check_expression(expr):
    stack = []
    opening = ['(', '{', '[']
    closing = [')', '}', ']']

    for symbol in expr:
        if symbol in opening:
            stack.append(symbol)
        elif symbol in closing:
            pos = closing.index(symbol)
            if ((len(stack) > 0) and
                (opening[pos] == stack[len(stack) - 1])):
                stack.pop()
            else:
                return False
    if len(stack) == 0:
        return True
    else:
        return False

# Test the function
assert check_expression("{()}[{}]") == True
```

This function uses a stack to keep track of the opening parentheses. It iterates over the expression, pushing any opening parentheses it encounters onto the stack. When it encounters a closing parenthesis, it checks if the last item on the stack is the corresponding opening parenthesis. If it is, it pops the stack. If not, or if the stack is empty at the end, it returns False, indicating that the expression is not balanced. If the stack is empty at the end, it returns True, indicating that the expression is balanced.

open-hermes-2.5-code-290k-13b. fail_base: False, fail_plus: True

  
def check_expression(expression):
    stack = []
    opening_brackets = ['(', '[', '{']
    closing_brackets = [')', ']', '}']

    for char in expression:
        if char in opening_brackets:
            stack.append(char)
        elif char in closing_brackets:
            if not stack or opening_brackets.index(stack.pop()) != closing_brackets.index(char):
                return False

    return not stack

assert check_expression("{()}[{}]") == True

codet5p-6b. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""


def check_expression(expression):
    stack = []
    for char in expression:
        if char in ["{", "[", "("]:
            stack.append(char)
        elif char in ["}", "]", ")"]:
            if len(stack) == 0:
                return False
            if char == "}" and stack[-1]!= "{":
                return False
            if char == "]" and stack[-1]!= "[":
                return False
            if char == ")" and stack[-1]!= "(":
                return False
            stack.pop()
    return len(stack) == 0

assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]")

codegemma-7b-it. fail_base: True, fail_plus: True

  def check_expression(expression):
  """
  Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
  assert check_expression("{()}[{}]") == True
  """
  stack = []
  for char in expression:
    if char in ['(', '{', '[']:
      stack.append(char)
    elif char in [')', '}', ']']:
      if not stack or stack.pop() != char:
        return False
  return not stack

assert check_expression("{()}[{}]") == True

mistralai--Mistral-7B-Instruct-v0.2. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. 
assert check_expression("{()}[{}]") == True
"""
def is_balanced(expression):
    stack = []
    opening_symbols = "([{"
    closing_symbols = ")]}"
    for symbol in expression:
        if symbol in opening_symbols:
            stack.append(symbol)
        elif symbol in closing_symbols:
            if not stack or stack.pop() != opening_symbols[closing_symbols.index(symbol)]:
                return False
    return not stack

def check_expression(expression):
    return is_balanced(expression)

# Test cases
assert check_expression("{()}[{}]") == True
assert check_expression("{[(])}") == False
assert check_expression("([{}])") == True
assert check_expression("(]") == False

xwincoder-34b. fail_base: False, fail_plus: True

  def check_expression(expression: str) -> bool:
    stack = []
    opening_brackets = ['(', '[', '{']
    closing_brackets = [')', ']', '}']
    brackets_map = {')': '(', ']': '[', '}': '{'}

    for char in expression:
        if char in opening_brackets:
            stack.append(char)
        elif char in closing_brackets:
            if not stack or stack.pop() != brackets_map[char]:
                return False

    return not stack

# Test the function
assert check_expression("{()}[{}]") == True

wizardcoder-15b. fail_base: False, fail_plus: True

  Here's the Python script for the given problem:

```python
def check_expression(expression):
    stack = []
    for char in expression:
        if char in ['(', '{', '[']:
            stack.append(char)
        elif char in [')', '}', ']']:
            if not stack:
                return False
            if char == ')' and stack[-1] == '(':
                stack.pop()
            elif char == '}' and stack[-1] == '{':
                stack.pop()
            elif char == ']' and stack[-1] == '[':
                stack.pop()
            else:
                return False
    return not stack
```

The function `check_expression` takes an expression as input and returns `True` if the expression is balanced and `False` otherwise.

The function uses a stack to keep track of the opening parentheses. For each opening parenthesis, the function pushes it onto the stack. For each closing parenthesis, the function checks if the stack is empty. If it is, the function returns `False` because the expression is not balanced. If the stack is not empty, the function pops the top element from the stack and checks if it matches the closing parenthesis. If it does not match, the function returns `False` because the expression is not balanced. If the stack is empty after processing all the closing parentheses, the function returns `True` because the expression is balanced.

code-llama-34b. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""

def check_expression(expression):
    stack = []
    for char in expression:
        if char in ["{", "[", "("]:
            stack.append(char)
        elif char in ["}", "]", ")"]:
            if not stack:
                return False
            last_char = stack.pop()
            if last_char == "{" and char != "}":
                return False
            if last_char == "[" and char != "]":
                return False
            if last_char == "(" and char != ")":
                return False
    return not stack

deepseek-coder-33b-instruct. fail_base: False, fail_plus: True

  Here is the Python function to check if the given expression is balanced or not:

```python
def check_expression(expr):
    stack = []
    open_tup = tuple('({[')
    close_tup = tuple(')}]')
    map = dict(zip(open_tup, close_tup))

    for i in expr:
        if i in open_tup:
            stack.append(map[i])
        elif i in close_tup:
            if not stack or i != stack.pop():
                return False
    if stack:
        return False
    return True

# Test the function
print(check_expression("{()}[{}]"))  # Output: True
```

This function uses a stack to keep track of the opening brackets. When it encounters a closing bracket, it checks if the top of the stack is the corresponding opening bracket. If it is, it pops the opening bracket from the stack. If it is not, or if the stack is empty, it returns False. If it successfully goes through the entire expression and the stack is empty, it returns True.

phi-2. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""

def check_expression(expression):
    stack = []
    for char in expression:
        if char in ["(", "{", "["]:
            stack.append(char)
        else:
            if not stack:
                return False
            if char == ")" and stack[-1] == "(":
                stack.pop()
            elif char == "}" and stack[-1] == "{":
                stack.pop()
            elif char == "]" and stack[-1] == "[":
                stack.pop()
            else:
                return False
    return not stack

assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{

codet5p-2b. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""


def check_expression(exp):
    stack = []
    for i in exp:
        if i == '{' or i == '[' or i == '(':
            stack.append(i)
        elif i == '}' or i == ']' or i == ')':
            if len(stack) == 0:
                return False
            if i == '}' and stack[-1] == '{':
                stack.pop()
            elif i == ']' and stack[-1] == '[':
                stack.pop()
            elif i == ')' and stack[-1] == '(':
                stack.pop()
            else:
                return False
    if len(stack) == 0:
        return True
    else:
        return False

print(check_expression("{()}[{}]") == True)
print(check_expression("{()}[{}]") == False)
print(check_expression("{()}[{}]") == False)
print(check_expression("{()}[{}]") == False)
print(check_expression("{()}[{}]") == False)
print(check_expression("{()}[{}]") == False)
print(check_expression("{()}[{}]") == False)
print(check_expression("{()}[{}]") == False)
print(check_expression("{()}[{}]") == False)
print(check_expression("{()}[{}]") == False)
print(check_expression("{()}[{}]") == False)
print(check_expression("{()}[{}]") == False)
print(check_expression("{()}[{}]") == False)
print(check_expression("{()}[{}]") == False)
print(check_expression("{()}[{}]") == False)
print(check_expression("{()}[{}]") == False)
print(check_expression("{()}[{}]") == False)
print(check_expression("{()}[{}]") == False)
print(check_expression("

bigcode--starcoder2-15b-instruct-v0.1. fail_base: False, fail_plus: True

  def check_expression(expression: str) -> bool:
    stack = []
    mapping = {")": "(", "}": "{", "]": "["}

    for char in expression:
        if char in mapping:
            if not stack or stack.pop() != mapping[char]:
                return False
        else:
            stack.append(char)

    return not stack

codegemma-2b. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""

def check_expression(exp):
    stack = []
    for i in exp:
        if i in ['(', '{', '[']:
            stack.append(i)
        else:
            if not stack:
                return False
            if i == ')' and stack[-1] == '(':
                stack.pop()
            elif i == '}' and stack[-1] == '{':
                stack.pop()
            elif i == ']' and stack[-1] == '[':
                stack.pop()
            else:
                return False
    if not stack:
        return True
    else:
        return False
<|file_separator|>

white-rabbit-neo-33b-v1. fail_base: False, fail_plus: True

  def check_expression(expression):
    stack = []
    brackets = {')': '(', '}': '{', ']': '['}

    for char in expression:
        if char in brackets.values():
            stack.append(char)
        elif char in brackets.keys():
            if not stack or brackets[char] != stack.pop():
                return False

    return not stack

# Test the function
assert check_expression("{()}[{}]") == True
assert check_expression("{(})") == False
assert check_expression("[()]{}{[()()]()}") == True
assert check_expression("{{[[(())]]}}") == True
assert check_expression("[(])") == False

microsoft--Phi-3-mini-4k-instruct. fail_base: False, fail_plus: True

  def check_expression(expression):
    """
    Check if the given expression is balanced or not.

    Args:
    expression (str): The expression to check.

    Returns:
    bool: True if the expression is balanced, False otherwise.
    """
    # Define the opening and closing brackets
    opening_brackets = ['(', '{', '[']
    closing_brackets = [')', '}', ']']

    # Create a stack to keep track of opening brackets
    stack = []

    # Iterate through each character in the expression
    for char in expression:
        # If the character is an opening bracket, push it onto the stack
        if char in opening_brackets:
            stack.append(char)
        # If the character is a closing bracket
        elif char in closing_brackets:
            # If the stack is empty or the top of the stack doesn't match the closing bracket, return False
            if not stack or opening_brackets[closing_brackets.index(char)] != stack.pop():
                return False

    # If the stack is empty, the expression is balanced
    return len(stack) == 0

# Test the function
assert check_expression("{()}[{}]") == True

speechless-codellama-34b. fail_base: False, fail_plus: True

  def check_expression(expression):
    stack = []
    for char in expression:
        if char in "{[(":
            stack.append(char)
        elif char in ")]}":
            if not stack:
                return False
            elif char == ")" and stack[-1] != "(":
                return False
            elif char == "]" and stack[-1] != "[":
                return False
            elif char == "}" and stack[-1] != "{":
                return False
            stack.pop()
    return not stack

assert check_expression("{()}[{}]") == True
```

meta-llama-3-70b-instruct. fail_base: False, fail_plus: True

  def check_expression(expression):
    stack = []
    mapping = {")": "(", "}": "{", "]": "["}
    for char in expression:
        if char in mapping.values():
            stack.append(char)
        elif char in mapping:
            if not stack or mapping[char] != stack.pop():
                return False
    return not stack

assert check_expression("{()}[{}]")
```

stable-code-3b. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""

def check_expression(expression):
    stack = []
    for char in expression:
        if char in "({[":
            stack.append(char)
        elif char in ")}]":
            if not stack:
                return False
            if char == ")" and stack[-1] == "(":
                stack.pop()
            elif char == "}" and stack[-1] == "{":
                stack.pop()
            elif char == "]" and stack[-1] == "[":
                stack.pop()
            else:
                return False
    return not stack

print(check_expression("{()}[{}]"))
print(check_expression("{()}[{]}"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))

codegen-6b. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""

def check_expression(expression):
    stack = []
    for i in expression:
        if i in ['(', '{', '[']:
            stack.append(i)
        elif i in [')', '}', ']']:
            if len(stack) == 0:
                return False
            if i == ')' and stack[-1]!= '(':
                return False
            if i == '}' and stack[-1]!= '{':
                return False
            if i == ']' and stack[-1]!= '[':
                return False
            stack.pop()
    if len(stack) == 0:
        return True
    else:
        return False

assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]")

gpt-4-1106-preview. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""


import re

def check_expression(expression):
    # Using a stack to keep track of opening brackets
    stack = []
    # Dictionary to hold matching pairs
    brackets = {'(': ')', '{': '}', '[': ']'}

    # Iterate over each character in the expression
    for char in expression:
        # If the character is an opening bracket, push to stack
        if char in brackets:
            stack.append(char)
        # If the character is a closing bracket
        elif char in brackets.values():
            # If stack is empty or doesn't match the corresponding opening bracket, return False
            if not stack or char != brackets[stack.pop()]:
                return False

    # If stack is not empty at the end, return False, otherwise True
    return not stack

# Test the function
assert check_expression("{()}[{}]") == True

gemma-7b-it. fail_base: True, fail_plus: True

  def check_expression(exp):
    mapping = {
        "(": ")",
        "[": "]",
        "{": "}",
    }

    # Iterate over the expression to find the opening and closing parenthesis
    for i in range(len(exp)):
        # If the current character is an opening parenthesis, add its position to the stack
        if exp[i] in mapping:
            stack.append(i)

        # If the current character is a closing parenthesis, check if the stack is not empty
        elif stack:
            # If the character matches the opening parenthesis at the top of the stack, remove it from the stack
            if exp[i] == mapping[exp[stack[-1]]]:
                stack.pop()

    # If the stack is empty, the expression is balanced
    return not stack

opencodeinterpreter-ds-33b. fail_base: False, fail_plus: True

  ```python
def check_expression(expression):
    stack = []
    for char in expression:
        if char in ['(', '{', '[']:
            stack.append(char)
        elif char in [')', '}', ']']:
            if not stack:
                return False
            if char == ')' and stack[-1] != '(' or char == '}' and stack[-1] != '{' or char == ']' and stack[-1] != '[':
                return False
            stack.pop()
    return not stack

# Test the function
print(check_expression("{()}[{}]"))  # Output: True

openchat. fail_base: False, fail_plus: True

  def check_expression(expression):
    stack = []
    for char in expression:
        if char in ['(', '{', '[']:
            stack.append(char)
        elif char in [')', '}', ']']:
            if not stack:
                return False
            if char == ')' and stack[-1] != '(':
                return False
            if char == '}' and stack[-1] != '{':
                return False
            if char == ']' and stack[-1] != '[':
                return False
            stack.pop()
    return not stack

assert check_expression("{()}[{}]") == True

speechless-starcoder2-7b. fail_base: False, fail_plus: True

  def check_expression(expression):
    stack = []
    balanced = True
    index = 0

    while index < len(expression) and balanced:
        symbol = expression[index]
        if symbol in "({[":
            stack.append(symbol)
        else:
            if not stack:
                balanced = False
            else:
                top_symbol = stack.pop()
                if not match(top_symbol, symbol):
                    balanced = False
        index += 1

    if balanced and stack:
        balanced = False

    return balanced

def match(open, close):
    opens = "({["
    closes = ")}]"
    return opens.index(open) == closes.index(close)

assert check_expression("{()}[{}]") == True

wizardcoder-7b. fail_base: False, fail_plus: True

  Here's a Python function that checks if the given expression is balanced or not:

```python
def check_expression(expression):
    stack = []
    for char in expression:
        if char in ["(", "{", "["]:
            stack.append(char)
        elif char in [")", "}", "]"]:
            if not stack:
                return False
            if (char == ")" and stack[-1] == "(") or (char == "}" and stack[-1] == "{") or (char == "]" and stack[-1] == "["):
                stack.pop()
            else:
                return False
    return not stack
```

This function uses a stack to keep track of opening brackets. If an opening bracket is encountered, it is pushed onto the stack. If a closing bracket is encountered, it is checked against the top of the stack to see if it matches the corresponding opening bracket. If it does, the opening bracket is popped from the stack. If the stack is empty at the end of the expression, then the expression is balanced. If there are any remaining opening brackets at the end of the expression, it is not balanced. The function returns `True` if the expression is balanced, and `False` otherwise. 

octocoder. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""


def check_expression(expression):
    stack = []
    for char in expression:
        if char in "({[":
            stack.append(char)
        elif char in ")}]":
            if not stack:
                return False
            if char == ")" and stack[-1] != "(":
                return False
            if char == "}" and stack[-1] != "{":
                return False
            if char == "]" and stack[-1] != "[":
                return False
            stack.pop()
    return not stack

gemma-1.1-7b-it. fail_base: False, fail_plus: True

  def check_expression(exp):
    stack = []
    for char in exp:
        if char in ['(', '{', '[']:
            stack.append(char)
        else:
            if not stack:
                return False
            top = stack.pop()
            if (char == ')' and top == '(') or (char == '}' and top == '{') or (char == ']' and top == '['):
                continue
            else:
                return False
    if stack:
        return False
    return True

assert check_expression("{()}[{}]") == True

deepseek-coder-6.7b-base. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""


def check_expression(expression):
    stack = []
    for char in expression:
        if char in ["(", "[", "{"]:
            stack.append(char)
        else:
            if not stack:
                return False
            if char == ")" and stack[-1] == "(":
                stack.pop()
            elif char == "]" and stack[-1] == "[":
                stack.pop()
            elif char == "}" and stack[-1] == "{":
                stack.pop()
            else:
                return False
    return not stack


assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}]")

codegen-16b. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""

def check_expression(expression):
    stack = []
    for char in expression:
        if char in ["(", "{", "["]:
            stack.append(char)
        else:
            if not stack:
                return False
            current_char = stack.pop()
            if current_char == '(':
                if char!= ")":
                    return False
            if current_char == '{':
                if char!= "}":
                    return False
            if current_char == '[':
                if char!= "]":
                    return False
    if stack:
        return False
    return True

assert check_expression("{()}[{}]") == True
assert check_expression("{(}]") == False
assert check_expression("{(})") == False
assert check_expression("{(})") == False
assert check_expression("{[}") == False
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression("{[}]") == True
assert check_expression

mistral-7b. fail_base: True, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""


def check_expression(expression):
    stack = []
    for char in expression:
        if char in "([{":
            stack.append(char)
        elif char in ")]}":
            if not stack or stack.pop() != "(" + char:
                return False
    return not stack


assert check_expression("{()}[{}]") == True
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check_expression("{()}[{}](") == False
assert check

speechless-mistral-7b. fail_base: False, fail_plus: True

  def check_expression(expression):
    stack = []
    opening_symbols = "([{"
    closing_symbols = ")]}"
    mapping = {"(": ")", "[": "]", "{": "}"}

    for symbol in expression:
        if symbol in opening_symbols:
            stack.append(symbol)
        elif symbol in closing_symbols:
            if not stack or mapping[stack.pop()] != symbol:
                return False

    return len(stack) == 0

assert check_expression("{()}[{}]") == True
```

This Python script defines a function `check_expression` that takes an expression as input and returns `True` if the expression is balanced and `False` otherwise. The function uses a stack to keep track of the opening symbols and checks if the closing symbols match the corresponding opening symbols. If the stack is not empty at the end of the function, it means there are unmatched opening symbols, so the function returns `False`.

codet5p-16b. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""


def check_expression(expression):
    stack = []
    for char in expression:
        if char in ["(", "{", "["]:
            stack.append(char)
        else:
            if not stack:
                return False
            current_char = stack.pop()
            if current_char == '(':
                if char!= ")":
                    return False
            if current_char == '{':
                if char!= "}":
                    return False
            if current_char == '[':
                if char!= "]":
                    return False
    if stack:
        return False
    return True

assert check_expression("{()}[{}]") == True
assert check_expression("{(}[{}]") == False
assert check_expression("{()}[{}]{}") == True
assert check_expression("{()}[{}]{}") == False
assert check_expression("{()}[{}]{}") == False
assert check_expression("{()}[{}]{}") == False
assert check_expression("{()}[{}]{}") == False
assert check_expression("{()}[{}]{}") == False
assert check_expression("{()}[{}]{}") == False
assert check_expression("{()}[{}]{}") == False
assert check_expression("{()}[{}]{}") == False
assert check_expression("{()}[{}]{}") == False
assert check_expression("{()}[{}]{}") == False
assert check_expression("{()}[{}]{}") == False
assert check_expression("{()}[{}]{}") == False
assert check_expression("{()}[{}]{}") == False
assert check_expression("{()}[{}]{}") == False
assert check_expression("{()}[{}]{}") == False
assert check_expression("{()}[{}]{}") == False
assert check_expression("{()}[{}]{}") == False
assert check_expression("{()}[{}]

code-llama-13b. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""


def check_expression(expression):
    stack = []
    for char in expression:
        if char in "([{":
            stack.append(char)
        elif char in ")]}":
            if not stack:
                return False
            if stack[-1] == "(" and char == ")":
                stack.pop()
            elif stack[-1] == "[" and char == "]":
                stack.pop()
            elif stack[-1] == "{" and char == "}":
                stack.pop()
            else:
                return False
    return not stack


if __name__ == "__main__":
    assert check_expression("{()}[{}]") == True
    assert check_expression("{()}[{]") == False
    assert check_expression("{()}[{)}]") == False
    assert check_expression("{()}[{)}") == False

xdan-l1-chat. fail_base: False, fail_plus: True

  def check_expression(expression):
    stack = []
    opening_symbols = "([{"
    closing_symbols = ")]}"
    matching_pairs = {")": "(", "]": "[", "}": "{"}

    for symbol in expression:
        if symbol in opening_symbols:
            stack.append(symbol)
        elif symbol in closing_symbols:
            if not stack or stack.pop() != matching_pairs[symbol]:
                return False

    return len(stack) == 0

# Test the function
assert check_expression("{()}[{}]") == True

solar-10.7b-instruct. fail_base: True, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""
def check_expression(expression):
    stack = []
    for char in expression:
        if char in '([{':
            stack.append(char)
        elif char in '()]':
            if not stack or stack.pop() != '[':
                return False
        elif char in '}':
            if not stack or stack.pop() != '{':
                return False
    return not stack

assert check_expression("{()}[{}]") == True

gemma-2b. fail_base: True, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""


def check_expression(exp):
    stack = []
    for i in exp:
        if i == '(':
            stack.append(i)
        elif i == ')':
            if stack:
                stack.pop()
            else:
                return False
    if stack:
        return False
    else:
        return True

claude-3-sonnet-20240229. fail_base: False, fail_plus: True

  ```python
"""
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""

def check_expression(expression):
    stack = []
    opening_brackets = ['(', '{', '[']
    closing_brackets = [')', '}', ']']
    bracket_map = {')': '(', '}': '{', ']': '['}

    for char in expression:
        if char in opening_brackets:
            stack.append(char)
        elif char in closing_brackets:
            if not stack:
                return False
            top_element = stack.pop()
            if bracket_map[char] != top_element:
                return False

    return len(stack) == 0

starcoder2-15b-oci. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""


def check_expression(expression):
    stack = []
    for char in expression:
        if char in ['(', '{', '[']:
            stack.append(char)
        elif char in [')', '}', ']']:
            if not stack:
                return False
            top = stack.pop()
            if (char == ')' and top != '(') or (char == '}' and top != '{') or (char == ']' and top != '['):
                return False
    return not stack

starcoder2-3b. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""

def check_expression(expression):
    stack = []
    for char in expression:
        if char == "{" or char == "[" or char == "(":
            stack.append(char)
        elif char == "}" or char == "]" or char == ")":
            if len(stack) == 0:
                return False
            if char == "}" and stack[-1] == "{":
                stack.pop()
            elif char == "]" and stack[-1] == "[":
                stack.pop()
            elif char == ")" and stack[-1] == "(":
                stack.pop()
            else:
                return False
    if len(stack) == 0:
        return True
    else:
        return False

print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}("))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))
print(check_expression("{()}[{}]"))

speechless-starcoder2-15b. fail_base: False, fail_plus: True

  def check_expression(expression):
    stack = []
    for char in expression:
        if char in ['(', '{', '[']:
            stack.append(char)
        else:
            if not stack:
                return False
            if char == ')' and stack[-1] != '(':
                return False
            if char == '}' and stack[-1] != '{':
                return False
            if char == ']' and stack[-1] != '[':
                return False
            stack.pop()
    return not stack

assert check_expression("{()}[{}]") == True

gemma-7b. fail_base: False, fail_plus: True

  """
Write a function to check if the given expression is balanced or not. https://www.geeksforgeeks.org/check-for-balanced-parentheses-in-an-expression/
assert check_expression("{()}[{}]") == True
"""


def check_expression(exp):
    stack = []
    for i in exp:
        if i in ['(', '{', '[']:
            stack.append(i)
        else:
            if not stack:
                return False
            if i == ')' and stack[-1] == '(':
                stack.pop()
            elif i == '}' and stack[-1] == '{':
                stack.pop()
            elif i == ']' and stack[-1] == '[':
                stack.pop()
    return not stack

opencodeinterpreter-ds-6.7b. fail_base: False, fail_plus: True

  ```python
def check_expression(expression):
    stack = []
    opening = ['(', '{', '[']
    closing = [')', '}', ']']
    for bracket in expression:
        if bracket in opening:
            stack.append(bracket)
        elif bracket in closing:
            if not stack:
                return False
            elif opening.index(stack.pop()) != closing.index(bracket):
                return False
    return not stack

# Test the function
assert check_expression("{()}[{}]") == True