Submission #1340697

---

Source Code Expand

#include <cstdio>
#include <stack>
using namespace std;

int N;
char S[205];
int bra;
stack<int> s;

int main() {
    scanf("%d%s", &N, S);
    for (int i = 0; i != N; ++i) {
        switch (S[i]) {
        case '(':
            s.push('(');
            break;
        case ')':
            if (s.empty()) ++bra;
            else s.pop();
            break;
        }
    }
    while (bra--) putchar('(');
    printf("%s", S);
    while (!s.empty()) {
        putchar(')');
        s.pop();
    }
    putchar('\n');
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:11:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%s", &N, S);
                         ^

Judge Result