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#include <bits/stdc++.h>
using namespace std;
int main() {
    int a; cin >> a;
    while (a--) {
        string b; cin >> b;
        stack<char> s;
        bool c = true;
        for (char d : b) {
            if (d == '(') s.push(d);
            else {
                if (s.empty()) { c = false; break; }
                s.pop();
            }
        }
        if (!s.empty()) c = false;
        cout << (c ? "YES" : "NO") << "\n";
    }
}

Success #stdin #stdout 0.01s 5276KB

stdin

copy

Standard input is empty

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C++ (gcc 8.3)

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public

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