제출 #941171

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
941171		LucaIlie	Inside information (BOI21_servers)	C++17	2.50 / 100	285 ms	524288 KiB

servers

#include <bits/stdc++.h>

using namespace std;

const int MAX_N = 1.2e5;
bitset<MAX_N + 1> d[MAX_N + 1];

int main() {
    int n, q;

    cin >> n >> q;
    for ( int i = 1; i <= n; i++ )
        d[i][i] = true;
    q += n - 1;
    while ( q-- ) {
        char t;

        cin >> t;
        if ( t == 'S' ) {
            int a, b;
            cin >> a >> b;
            d[a] |= d[b];
            d[b] |= d[a];
        } else if ( t == 'Q' ) {
            int a, b;
            cin >> a >> b;
            cout << (d[a][b] ? "yes" : "no") << "\n";
        } else if ( t == 'C' ) {
            int a;
            cin >> a;
            cout << 0 << "\n";
        }
    }

    return 0;
}

• Subtask 1: 2.5 / 2.5
• Subtask 2: 0 / 2.5
• Subtask 3: 0 / 2.5
• Subtask 4: 0 / 2.5
• Subtask 5: 0 / 5
• Subtask 6: 0 / 5
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 12.5
• Subtask 10: 0 / 12.5
• Subtask 11: 0 / 17.5
• Subtask 12: 0 / 17.5