Submission #1165818

#	Time	Username	Problem	Language	Result	Execution time	Memory
1165818		SmuggingSpun	Carnival (CEOI14_carnival)	C++20	100 / 100	4 ms	440 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<vector<int>>a;
    a.emplace_back(vector<int>(1, 1));
    for(int i = 2; i <= n; i++){
        int low = 0, high = int(a.size()) - 1, p = -1;
        while(low <= high){
            int mid = (low + high) >> 1;
            cout << mid + 2 << " " << i << " ";
            for(int j = 0; j <= mid; j++){
                cout << a[j][0] << " ";
            }
            cout << endl;
            int x;
            cin >> x;
            if(x == mid + 2){
                low = mid + 1;
            }
            else{
                high = (p = mid) - 1;
            }
        }
        if(p == -1){
            a.emplace_back(vector<int>(1, i));
        }
        else{
            a[p].emplace_back(i);
        }
    }
    vector<int>ans(n + 1);
    for(int i = 0; i < a.size(); i++){
        for(int& j : a[i]){
            ans[j] = i + 1;
        }
    }
    cout << "0 ";
    for(int i = 1; i <= n; i++){
        cout << ans[i] << " ";
    }
}

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