Submission #758626

#	Time	Username	Problem	Language	Result	Execution time	Memory
758626		SanguineChameleon	Hotter Colder (IOI10_hottercolder)	C++17	79 / 100	846 ms	8268 KiB

hottercolder

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

mt19937 gen(64920);
uniform_int_distribution<int> dist(0, 1);

int HC(int N){
	int lt = 1;
	int rt = N;
	int prv = -1;
	while (lt < rt) {
		int res = -2;
		if (prv == lt) {
			res = Guess(rt);
			prv = rt;
		}
		else if (prv == rt) {
			res = -Guess(lt);
			prv = lt;
		}
		else if (dist(gen) == 0) {
			Guess(lt);
			res = Guess(rt);
			prv = rt;
		}
		else {
			Guess(rt);
			res = -Guess(lt);
			prv = lt;
		}
		if (res == 0) {
			return (lt + rt) / 2;
		}
		if (res == 1) {
			lt = (lt + rt) / 2 + 1;
		}
		else {
			rt = (lt + rt - 1) / 2;
		}
	}
	return lt;
}

• Subtask 1: 25 / 25
• Subtask 2: 25 / 25
• Subtask 3: 25 / 25
• Subtask 4: 4 / 25