Python

Question

Implement the balanced() function to return True if the parentheses in the given expression are balanced, and False if not.
def balanced(expression):
#your code goes here
a = expression.count("(")
b = expression.count(")")
if a == b:
return True
else:
return False
print(balanced(input()))
1-6 test case is working, but 7 is false

Answer 1

Consider this expression:
)(()

Your code would return True but it should return False.

edit:
look at the task description again, it gives you a hint to use a list and implement a stack to check the parentheses

Answer 2

given that what lisa said is the problem i'd say you could

store all of those symbols in a list

the first element + last element should give ()
if you reach a point where you can't its false