제출 #1085966

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1085966		not_amir	Colors (BOI20_colors)	C++14	0 / 100	0 ms	344 KiB

Colors

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

int solve(int n, int c, int add){
  if(n == 1)
    return 1 + add;
  int diff = n/2 + add;
  int q = (c - diff > 0)?c-diff:c+diff;
  cout << "? " << q << endl;
  int ans;
  cin >> ans;
  if(ans)
    return solve(n/2, q, add);
  else
    return solve(n/2, q, add + n/2);
}

int main(){
//   ios_base::sync_with_stdio(false);
//   cin.tie(NULL);
  int n;
  cin >> n;
  cout << "? " << n/3 << endl;
  int ans = solve(n, n/3, 0);
  cout << "= " << ans;
}

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• Subtask 3: 0 / 21
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