Submission #693617

#	Time	Username	Problem	Language	Result	Execution time	Memory
693617		ojuzuser12	Carnival (CEOI14_carnival)	C++17	100 / 100	28 ms	300 KiB

carnival

#include <bits/stdc++.h>
using namespace std;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int N, C = 0; cin >> N;
    vector<int> costume(N + 1, -1);
    for(int i = 1; i <= N; i++) {
        if(costume[i] == -1) {
            C++;
            costume[i] = C;
        }
        int l = i + 1, r = N, mid, pos = N + 1;
        while(l <= r) {
            mid = (l + r) / 2;
            cout << (mid - i + 1);
            for(int j = i; j <= mid; j++) {
                cout << ' ' << j;
            }
            cout << '\n';
            cout.flush();
            int a; cin >> a;
            cout << (mid - i);
            for(int j = i + 1; j <= mid; j++) {
                cout << ' ' << j;
            }
            cout << '\n';
            cout.flush();
            int b; cin >> b;
            if(a == b) {
                pos = min(pos, mid);
                r = mid - 1;
            } else {
                l = mid + 1;
            }
        }
        if(pos != N + 1) {
            costume[pos] = costume[i];
        }
    }
    cout << 0;
    for(int i = 1; i <= N; i++) {
        cout << ' ' << costume[i];
    }
    cout << '\n';
}

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