Submission #356464

#	Time	Username	Problem	Language	Result	Execution time	Memory
356464		Mefarnis	Hotter Colder (IOI10_hottercolder)	C++14	77 / 100	2870 ms	8196 KiB

hottercolder

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

int HC(int n) {
	srand(time(NULL));
	int l = 1 , r = n;
	while(l < r) {
		int mid = (l+r) >> 1;
		if(rand()%2 == 0) {
			Guess(l);
			int val = Guess(r);
			if(val == 0)
				return mid;
			if((l+r)%2 == 0) {
				if(val == -1)
					r = mid-1;
				else
					l = mid+1;
			}
			else {
				if(val == -1)
					r = mid;
				else
					l = mid+1;
			}
		}
		else {
			Guess(r);
			int val = Guess(l);
			if(val == 0)
				return mid;
			if((l+r)%2 == 0) {
				if(val == 1)
					r = mid-1;
				else
					l = mid+1;
			}
			else {
				if(val == 1)
					r = mid;
				else
					l = mid+1;
			}
		}
	}
	return l;
}

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