Submission #1165813

#	Time	Username	Problem	Language	Result	Execution time	Memory
1165813		SmuggingSpun	Carnival (CEOI14_carnival)	C++20	20 / 100	26 ms	432 KiB

carnival

#include<bits/stdc++.h>
using namespace std;
int main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int n;
    cin >> n;
    vector<int>parent(n + 1), id(n + 1);
    auto find_set = [&] (int N){
        while(N != parent[N]){
            N = parent[N] = parent[parent[N]];
        }
        return N;
    };
    auto merge = [&] (int u, int v){
        parent[find_set(v)] = find_set(u);
    };
    iota(parent.begin(), parent.end(), 0);
    for(int i = 1; i < n; i++){
        for(int j = i + 1; j <= n; j++){
            if(find_set(i) != find_set(j)){
                cout << "2 " << i << " " << j << endl;
                int x;
                cin >> x;
                if(x == 1){
                    merge(i, j);
                }
            }
        }
    }
    for(int i = 1, ID = 0; i <= n; i++){
        if(i == find_set(i)){
            id[i] = ++ID;
        }
    }
    cout << "0 ";
    for(int i = 1; i <= n; i++){
        cout << id[find_set(i)] << " ";
    }
}

• Subtask 1: 4 / 20
• Subtask 2: 4 / 20
• Subtask 3: 4 / 20
• Subtask 4: 4 / 20
• Subtask 5: 4 / 20