Submission #1143708

#	Time	Username	Problem	Language	Result	Execution time	Memory
1143708		sano	Hotter Colder (IOI10_hottercolder)	C++20	50 / 100	401 ms	8240 KiB

hottercolder

#include "grader.h"
#include<iostream>
#include<vector>

using namespace std;

int ries1(int l, int r) {
	if (r - l < 3) {
		Guess(l);
		int x = Guess(r);
		if (x == 0) return (l + r) / 2;
		if (x == -1) return l;
		if (x == 1) return r;
	}
	Guess(l);
	int p2 = l + ((r - l) / 3) * 2;
	int x = Guess(p2);
	if (x == -1) {
		return ries1(l, (l+p2)/2 - ((l+p2) % 2 == 0));
	}
	if (x == 1) {
		x = Guess(p2 + 1);
		if (x == -1) return ries1((l + p2) / 2 + 1, p2);
		if (x == 1) return ries1(p2 + 1, r);
	}
	if (x == 0) {
		return (l + p2) / 2;
	}
	return -1;
}

int HC(int n) {
	return ries1(1, n);
}

• Subtask 1: 25 / 25
• Subtask 2: 25 / 25
• Subtask 3: 0 / 25
• Subtask 4: 0 / 25