Submission #1163650

#	Time	Username	Problem	Language	Result	Execution time	Memory
1163650		cnn008	The Big Prize (IOI17_prize)	C++20	20 / 100	0 ms	456 KiB

prize

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

int cnt;
pair <int,int> mp[200005];
pair <int,int> get(int i){
	if(mp[i].first || mp[i].second) return mp[i];
	cnt++;
	assert(cnt<=10000);
	auto vi=ask(i);
	pair <int,int> ans={vi[0],vi[1]};
	return mp[i]=ans;
}
int find_best(int n) {
	int L=0,R=n-1;
	for(int i=1; i<=500; i++){
		int l=L,r=R;
		while(l<=r){
			int mid=(l+r)>>1;
			auto [u,v]=get(mid);
			if(!u and !v) return mid;
			if(!u){
				L=mid+1;
				break;
			}else r=mid-1;
		}
	}
	return 0;
}

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