Submission #1085969

#	Time	Username	Problem	Language	Result	Execution time	Memory
1085969		not_amir	Colors (BOI20_colors)	C++14	0 / 100	0 ms	344 KiB

Colors

#include <bits/stdc++.h>
using namespace std;
 
int ask(int q){
    cout << "? " << q << endl;
    int ans;
    cin >> ans;
    return ans;
}
 
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;
  if(ask(q))
    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;
  ask(1);
  int ans = solve(n, 1, 0);
  cout << "= " << ans;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 13
• Subtask 3: 0 / 21
• Subtask 4: 0 / 24
• Subtask 5: 0 / 33