Redundant parenthesis

#1

getting wrong output.

#2

Hey
in your main function-
you have to take input in the following way-
input t strings
int main() {

int n, t;

cin >> t;

while (t--)

{

   string arr;

    cin >> arr;

    isduplicate(arr) ? cout << "Duplicate\n" : cout << "Not Duplicates\n";

}

}

#3

@mahimahans111
now also getting wrong output

#4

hey your logic is not correct:-
You should go like this:-
1 If current character is close parenthesis ‘)’
pop character from the stack
no check-
if immediate pop is a open parenthesis ‘(’, we have found duplicate, so return true
else we continue popping characters from the stack till open parenthesis ‘(’ is
encountered

2 else push open parenthesis ‘(’, operators and

#5

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