Submission #918368

#	Time	Username	Problem	Language	Result	Execution time	Memory
918368		vjudge1	Carnival (CEOI14_carnival)	C++17	100 / 100	7 ms	692 KiB

carnival

#include <bits/stdc++.h>
#define int long long

using namespace std;

int n , ans;

signed main(){
    cin >> n;

    cout << "1 1";
    cout << endl;
    cin >> ans;

    vector<int> arr(n+5);
    arr[1] = 1;
    int color = 2;

    for(int i=2 ; i<=n ; i++){
        set<int> cnt;
        cout << i << " ";
        for(int j=1 ; j<=i ; j++){
            cout << j << " ";
        }
        for(int j=1 ; j<i ; j++){
            cnt.insert(arr[j]);
        }
        cout << endl;
        cin >> ans;
        if(ans > cnt.size()){
            arr[i] = color;
            color++;
            cnt.clear();
        }
        else{
            int l = 1 , r = i-1;
            while(l < r){
                cnt.clear();
                int mid = (l + r) / 2;
                cout << mid - l + 2 << " ";
                for(int k=l ; k<=mid ; k++){
                    cout << k << " ";
                    cnt.insert(arr[k]);
                }
                cout << i;
                cout << endl;
                cin >> ans;
                if(ans > cnt.size()){
                    l = mid + 1;
                }
                else{
                    r = mid;
                }
            }
            arr[i] = arr[l];
            cnt.clear();
        }
    }
    cout << 0 << " ";
    for(int i=1 ; i<=n ; i++){
        cout << arr[i] << " ";
    }
}

Compilation message (stderr)

carnival.cpp: In function 'int main()':
carnival.cpp:30:16: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::set<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |         if(ans > cnt.size()){
      |            ~~~~^~~~~~~~~~~~
carnival.cpp:48:24: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::set<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |                 if(ans > cnt.size()){
      |                    ~~~~^~~~~~~~~~~~

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