Submission #554354

#	Time	Username	Problem	Language	Result	Execution time	Memory
554354		Jarif_Rahman	Inside information (BOI21_servers)	C++17	2.50 / 100	1500 ms	524288 KiB

servers

#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, q; cin >> n >> q;
    q+=n-1;
    vector<set<int>> v(n);
    for(int i = 0; i < n; i++) v[i].insert(i);
    while(q--){
        str tt; int a, b; cin >> tt >> a >> b; a--, b--;
        if(tt == "S"){
            for(int x: v[b]) v[a].insert(x);
            v[b] = v[a];
        }
        else{
            cout << (v[a].find(b) != v[a].end() ? "yes":"no") << "\n";
        }
    }
}

• 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