Submission #56123

#	Time	Username	Problem	Language	Result	Execution time	Memory
56123		leejseo	Hotter Colder (IOI10_hottercolder)	C++98	25 / 100	814 ms	8312 KiB

hottercolder

#include "grader.h"
#include <stdio.h>
#include <algorithm>
int HC(int N){
	int lo = 1, hi = N;	
	while (lo < hi){		
		if (hi == lo + 1){			
			Guess(lo);
			if (Guess(hi) == 1) return hi;
			return lo;
		}
		int mid = (lo + hi) >> 1;		
		int left = Guess(lo);
		int middle = Guess(mid);		
		if (middle == -1){
			hi = mid;
			continue;
		}
		if (middle == 0){
			return (lo+mid) >> 1;
		}
		
		int right = Guess(hi);

		//middle == 1
		if (right == 1){
			lo = mid;
			continue;
		}
		if (right == 0){
			return (mid+hi)>>1;
		}
		if (right == -1){
			lo = std::max(lo+1, ((lo + mid) >> 1));
			hi = std::max(lo+1, ((hi + mid) >> 1));
			continue;
		}
	}	
	return lo;
}

Compilation message (stderr)

hottercolder.cpp: In function 'int HC(int)':
hottercolder.cpp:13:7: warning: unused variable 'left' [-Wunused-variable]
   int left = Guess(lo);
       ^~~~

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