What's wrong in this code? (Read Description)

Question

Below is code that I wrote for a practice quiz in 'Python Data Structures' course. It worked and met all possibilities except one. And that was one of the locked ones so I couldn't see what was the issue.

# Code for checking if every opened bracket is closed in an input expression (True) or not (False).

def balanced(a):
#your code goes here
o = 0
for x in a:
if x == "(":
o += 1
if x == ")":
o -= 1
return o == 0

a = input()
print(balanced(a))

Answer 1

I don’t have access to that course to see how the question is posed but I don’t see why it wouldn’t work. The only case I can think of where this would not technically be correct is if there is if ) appears before (. You could check a condition where o < 0 and return false in that case.

Answer 2

Hi, Salman Iqbal !

You have to modify the code. For example this input comes True:

)(5)(

That’s not correct.

You can take a look at this code if you want to have some code to compare with:

https://code.sololearn.com/cpuSHXo64jsS/?ref=app