Submission #385206

#	Time	Username	Problem	Language	Result	Execution time	Memory
385206		ritul_kr_singh	Carnival (CEOI14_carnival)	C++17	100 / 100	16 ms	492 KiB

carnival

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define sp << ' ' <<
#define nl << '\n'

vector<vector<int>> groups;
int currCount = 0, res;

int query(int x){
	cout << x+1;
	for(int i=0; i<=x; ++i) cout << ' ' << groups[i][0];
	cout << endl;
	int r; cin >> r;
	return r;
}

signed main(){
    cin.tie(0)->sync_with_stdio(0);
    int n; cin >> n;
    groups.push_back({1});
    currCount = 1;
    for(int i=2; i<=n; ++i){
    	cout << currCount+1;
    	for(int j=0; j<currCount; ++j) cout << ' ' << groups[j][0];
    	cout << ' ' << i << endl;
    	cin >> res;
    	if(res>currCount) groups.push_back({i}), ++currCount;
    	else{
    		int low = 0, high = currCount-1;
    		while(low<high){
    			int mid = (low+high)/2;
    			cout << mid+2;
    			for(int j=0; j<=mid; ++j) cout << ' ' << groups[j][0];
    			cout << ' ' << i << endl;
    			cin >> res;
    			if(res==mid+1) high = mid;
    			else low = mid+1;
    		}
    		groups[low].push_back(i);
    	}
    }
    cout << 0;
    int ans[n+1];
    for(int i=0; i<currCount; ++i){
    	for(int j=0; j<(int)groups[i].size(); ++j){
    		ans[groups[i][j]] = i+1;
    	}
    }
    for(int i=1; i<=n; ++i) cout << ' ' << ans[i];
    cout << endl;
}

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