Submission #41053

#	Time	Username	Problem	Language	Result	Execution time	Memory
41053		esspks21	Hotter Colder (IOI10_hottercolder)	C++14	50 / 100	773 ms	8204 KiB

hottercolder

#include "grader.h"
int HC(int N) {
	if (N <= 16) {
		Guess(1);
		for (int i = 2; i <= N; i++)
			if (Guess(i) == -1)
				return i - 1;
		return N;
	}
	int left = 1;
	int right = N;
	while (left <= right) {
		if (left == right)
			return (left + right) / 2;
		if (right - left <= 4)
			break;
		Guess(left);
		int temp = Guess(right);
		if (temp == 0) // same
			return (left + right) / 2;
		if (temp == 1) // hotter
			left = (left + right) / 2 + 1;
		if (temp == -1) // colder
			right = (left + right) / 2;
	}
	Guess(left);
	for (int i = left + 1; i <= right; i++)
		if (Guess(i) == -1)
			return i - 1;
	return right;
}

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