Submission #904911

#	Time	Username	Problem	Language	Result	Execution time	Memory
904911		dsyz	Carnival (CEOI14_carnival)	C++17	0 / 100	2 ms	456 KiB

carnival

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define MAXN (1000005)
int main() {
	ios_base::sync_with_stdio(false);cin.tie(0);
	ll N;
	cin>>N;
	vector<ll> unique; //exactly 1 representative from all different type of costumes
	for(ll i = 1;i <= N;i++){ //1-indexed
		cout<<unique.size() + 1<<" ";
		for(auto u : unique){
			cout<<u<<" ";
		}
		cout<<i<<endl;
		cout.flush();
		ll diff;
		cin>>diff;
		if(diff == unique.size() + 1){
			unique.push_back(i);
		}
	}
	vector<ll> ans;
	for(ll i = 1;i <= N;i++){
		ll L = 0;
		ll R = unique.size() - 1;
		while(L != R){
			ll mid = (L + R) / 2;
			cout<<(mid + 1) + 1<<" ";
			for(ll j = 0;j <= mid;j++){
				cout<<unique[j]<<" ";
			}
			cout<<i<<endl;
			cout.flush();
			ll diff;
			cin>>diff;
			if(diff == mid + 1){
				R = mid;
			}else{
				L = mid + 1;
			}
			cout.flush();
		}
		ans.push_back(L);
	}
	cout<<0<<" ";
	for(auto u : ans){
		cout<<u + 1<<" ";
	}
	cout<<endl;
	cout.flush();
}

Compilation message (stderr)

carnival.cpp: In function 'int main()':
carnival.cpp:19:11: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |   if(diff == unique.size() + 1){
      |      ~~~~~^~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20