Submission #1229998

#	Time	Username	Problem	Language	Result	Execution time	Memory
1229998		yixuan19	Carnival (CEOI14_carnival)	C++20	100 / 100	2 ms	412 KiB

carnival

#include <iostream>
#include <vector>

using namespace std;

int main(){
    
    int N;
    cin >> N;
    vector<int> sol(N+1);
    vector<int> unique;
    int res;
    sol[1] = 1;
    unique.push_back(1);

    for (int i = 2; i <= N; ++i){
        cout<<unique.size()+1<<' ';
        for (int in: unique){
            cout<<in<<' ';
        }
        cout<<i<<endl;
        cin >> res;
        if (res > unique.size()){
            sol[i] = res;
            unique.push_back(i);
        }else{
            int l = 0;
            int r = unique.size()-1;
            while (l < r){
                //cout<<"l "<<l<<" r "<<r<<endl;
                int m = (l+r)/2;
                cout<<m-l+2<<' ';
                for (int j = l; j <= m; ++j){
                    cout<<unique[j]<<' ';
                }
                cout<<i<<endl;
                cin >> res;
                if (res == m-l+2){
                    l = m+1;
                }else{
                    r = m;
                }
            }
            sol[i] = sol[unique[l]];
        }
        
    }
    cout<<0<<' ';
    for (int i = 1; i <= N; ++i){
        cout<<sol[i]<<' ';
    }
    cout<<endl;
}

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