Submission #71184

#	Time	Username	Problem	Language	Result	Execution time	Memory
71184		chhun	Hotter Colder (IOI10_hottercolder)	C++14	25 / 100	761 ms	8164 KiB

hottercolder

#include <stdio.h>
#include "grader.h"
int g1;
int g2;
int HC_(int l,int r) {
	if (r - l <= 3) {
		int g = Guess(l);
		for (int i = l; i <= r; i++) {
			if (Guess(i) == -1)return i-1;
		}
		return r;
	}
	g1 = Guess(l);
	g2 = Guess(r);
	if (g2 == 0)
		return (l + r + 1) / 2;
	else if (g2 == 1) {
		return HC_((r + l + 1) / 2, r);
	}
	else if (g2 == -1) {
		return HC_(l, (l + r-1) / 2);
	}
}
int HC(int N) {
	g1 = Guess(1);
	g2 = Guess(N);
	if (g2 == 0)
		return (N + 1) / 2;
	else if (g2 == 1) {
		return HC_((N + 1) / 2 + 1, N);
	}
	else if (g2 == -1) {
		return HC_(1, N / 2);
	}
}

Compilation message (stderr)

hottercolder.cpp: In function 'int HC_(int, int)':
hottercolder.cpp:7:7: warning: unused variable 'g' [-Wunused-variable]
   int g = Guess(l);
       ^
hottercolder.cpp:23:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
hottercolder.cpp: In function 'int HC(int)':
hottercolder.cpp:35:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

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