Submission #226572

#	Time	Username	Problem	Language	Result	Execution time	Memory
226572		Blerargh	Hotter Colder (IOI10_hottercolder)	C++17	0 / 100	10061 ms	24628 KiB

hottercolder

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

int HC(int N){
	if (N==1) return 1;
	
	int nextguess, prevvguess;
	int l=1, r=N;
	
	int mid = (l+r)/2;
	int chk = Guess(mid);
	chk = Guess(mid+1);
	if (chk == -1){
		r = mid;
	} else if (chk == 1){
		l = mid+1;
	}
	prevvguess = mid+1;
	
	while (l<r){
		nextguess = l - prevvguess + r;
		if (nextguess > prevvguess) nextguess = min(nextguess, N);
		else if (nextguess < prevvguess) nextguess = max(0, nextguess);
		chk = Guess(nextguess);
		
		if (chk == -1){
			if (nextguess > prevvguess) {
				r = (nextguess + prevvguess)/2;
			} else {
				l = (nextguess + prevvguess)/2;
			}
		} else if (chk == 1){
			if (nextguess > prevvguess) {
				l = (nextguess + prevvguess)/2;
			} else {
				r = (nextguess + prevvguess)/2;
			}
		} else if (chk == 0){
			return (prevvguess+nextguess)/2;
		}
		prevvguess = nextguess;
	}
}

Compilation message (stderr)

hottercolder.cpp: In function 'int HC(int)':
hottercolder.cpp:44:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

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