Submission #1240626

#	Time	Username	Problem	Language	Result	Execution time	Memory
1240626		KindaGoodGames	Inside information (BOI21_servers)	C++20	2 / 100	264 ms	589824 KiB

servers

#include<bits/stdc++.h>

using namespace std;

const int MAXN = 120000;
#define bs bitset<MAXN>

bs obtained[MAXN];
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n, q;
    cin >> n >> q;

    // vector<bs> available(n);

    for(int i = 0; i < n; i++){
        obtained[i][i] = true;
        // available[i][i] = true;
    }
    

    for(int t = 0; t < n+q-1; t++){
        char m;
        cin >> m;

        if(m == 'S'){
            int a,b;
            cin >> a >> b;
            a--;b--;
            obtained[a] |= obtained[b];
            obtained[b] |= obtained[a]; 
        }
        if(m == 'Q'){
            int a,d;
            cin >> a >>d;
            a--;d--;
            if(obtained[a][d]){
                cout << "yes\n";
            }else{
                cout << "no\n";
            }
        }
    }
}

• Subtask 1-1: 2 / 2
• Subtask 1-2: 0 / 3
• Subtask 2-1: 0 / 2
• Subtask 2-2: 0 / 3
• Subtask 3-1: 0 / 5
• Subtask 3-2: 0 / 5
• Subtask 4-1: 0 / 10
• Subtask 4-2: 0 / 10
• Subtask 5-1: 0 / 12
• Subtask 5-2: 0 / 13
• Subtask 6-1: 0 / 17
• Subtask 6-2: 0 / 18