Submission #549158

#	Time	Username	Problem	Language	Result	Execution time	Memory
549158		cig32	커다란 상품 (IOI17_prize)	C++17	20 / 100	1 ms	336 KiB

prize

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

int find_best(int n) {
  int lb = 0, rb = n - 1;
  while(lb < rb) {
    int mid = (lb + rb) >> 1;
    vector<int> q = ask(mid);
    if(q[0] == 0 && q[1] == 0) return mid;
    if(q[0] == 0) lb = mid + 1;
    else rb = mid;
  }
  return lb;
}

• Subtask 1: 20 / 20
• Subtask 2: 0 / 80