Submission #72817

#	Time	Username	Problem	Language	Result	Execution time	Memory
72817		funcsr	The Big Prize (IOI17_prize)	C++17	0 / 100	3 ms	628 KiB

prize

#include "prize.h"
#include <iostream>
#include <vector>
#include <algorithm>
#include <queue>
#include <cmath>
#include <cassert>
using namespace std;
#define rep(i,n)for (int i=0; i<(n); i++)
#define all(x) (x).begin(), (x).end()
#define pb push_back
#define _1 first
#define _2 second
#define INF 1145141919
typedef pair<int, int> P;

int find_best(int N) {
  int lo = 0, hi = N-1;
  while (hi-lo>=1) {
    int mid = (lo+hi)/2;
    vector<int> ret = ask(mid);
    if (ret[0]+ret[1] == 0) return mid;
    if (ret[0]>0) hi = mid-1;
    else lo = hi+1;
  }
  assert(ask(lo)[0]+ask(lo)[1]==0);
  return lo;
}

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