Submission #245831

#	Time	Username	Problem	Language	Result	Execution time	Memory
245831		minhcool	Carnival (CEOI14_carnival)	C++17	100 / 100	14 ms	512 KiB

carnival

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

#define int long long
#define fi first
#define se second
#define pb push_back
#define ins insert
#define er erase

typedef pair<int, int> ii;
typedef pair<ii, int> iii;
typedef pair<ii, ii> iiii;

const int oo = 1e18 + 7, mod = 1e9 + 7;

int n, color[155];
vector<int> arr;

signed main(){
	ios_base::sync_with_stdio(0);
	cin >> n;
	arr.pb(1);
	color[1] = 1;
	for(int i = 2; i <= n; i++){
	    cout << arr.size() + 1 << " ";
	    for(int j = 0; j < arr.size(); j++) cout << arr[j] << " ";
	    cout << i << "\n";
	    int ans;
	    cin >> ans;
	    if(ans == arr.size() + 1){
	        arr.pb(i);
	        color[i] = arr.size();
	        continue;
	    }
	    int l = 0, r = arr.size() - 1;
	    while(l != r){
	        int mid = (l + r) >> 1;
	        //cout << l << " " << r << " " << mid << "\n";
	        cout << mid - l + 2 << " ";
	        for(int j = l; j <= mid; j++) cout << arr[j] << " ";
	        cout << i << "\n";
	        int ans;
	        cin >> ans;
	        if(ans > (mid - l + 1)){
	            //cout << 1 << " ";
	            l = mid + 1;
	        }
	        else{
	            r = mid;
	            //cout << 2 << " ";
	        }
	        //cout << l << " " << r << "\n";
	    }
	    color[i] = l + 1;
	}
	cout << 0 << " ";
	for(int i = 1; i <= n; i++) cout << color[i] << " ";
}

Compilation message (stderr)

carnival.cpp: In function 'int main()':
carnival.cpp:27:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      for(int j = 0; j < arr.size(); j++) cout << arr[j] << " ";
                     ~~^~~~~~~~~~~~
carnival.cpp:31:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      if(ans == arr.size() + 1){
         ~~~~^~~~~~~~~~~~~~~~~

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