Submission #63044131

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;

int main() {
    string S;
    cin >> S;
    int cnt1 = 0, cnt2 = 0, cnt3 = 0;
    stack<char> s;
    for (int i = 0; i < S.size(); i++) {
        if (S[i] == '(') {
            cnt1++;
            s.push('(');
        } else if (S[i] == '[') {
            cnt2++;
            s.push('[');
        } else if (S[i] == '<') {
            cnt3++;
            s.push('<');
        } else if (S[i] == ')') {
            if (!s.empty() && s.top() != '(') {
                cout << "No" << endl;
                return 0;
            }
            cnt1--;
            s.pop();
            if (cnt1 < 0) {
                cout << "No" << endl;
                return 0;
            }
        } else if (S[i] == ']') {
            if (!s.empty() && s.top() != '[') {
                cout << "No" << endl;
                return 0;
            }
            cnt2--;
            s.pop();
            if (cnt2 < 0) {
                cout << "No" << endl;
                return 0;
            }
        } else if (S[i] == '>') {
            if (!s.empty() && s.top() != '<') {
                cout << "No" << endl;
                return 0;
            }
            cnt3--;
            s.pop();
            if (cnt3 < 0) {
                cout << "No" << endl;
                return 0;
            }
        }
    }

    if (cnt1 == 0 && cnt2 == 0 && cnt3 == 0) {
        cout << "Yes" << endl;
    } else {
        cout << "No" << endl;
    }
}

Submission Info

Compile Error

Main.cpp: In function ‘int main()’:
Main.cpp:9:23: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::__cxx11::basic_string<char>::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
    9 |     for (int i = 0; i < S.size(); i++) {
      |                     ~~^~~~~~~~~~

Judge Result