Where I did mistake ?

Question

def balanced(expression):
#your code goes here
stack =[]
count =0
rem =0
for i in range(len(expression )):
if '(' in expression[i] :
stack.insert(0,'(')
count +=1
elif ')' in expression[i]:
stack.pop(0)
rem +=1
else:
continue

if stack == [] and count !=0 and rem !=0:
return True

elif count == 0 and rem ==0:
return False
elif stack[0] =='(' :
return False

print(balanced(input()))

Answer 1

Forget about start with ")" and end with "("

Answer 2

Then how it can be resolve?

Answer 3

Just add check on this in start of function
def balanced(expression):
#your code goes here
lst = []
if expression [0]==')':
return False
if expression [len(expression )-1]=='(':
return False

for i in expression:

if i == '(':
lst.insert(0,i)
elif i == ')':
lst.pop(0)
#print(lst)
if len(lst) == 0:
return True
else:
return False
#print(balanced('(a( ) eee) ))'))
print(balanced(input()))

Answer 4

Thanks now understand