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Submission #232359

# Submission time Handle Problem Language Result Execution time Memory
232359 2020-05-16T20:05:33 Z crossing0ver Hotter Colder (IOI10_hottercolder) C++17
86 / 100
 743 ms 8136 KB 
#include<bits/stdc++.h>
#include "grader.h"
using namespace std;


int HC(int N){
	if (N == 1) return 1;
	int m = N/2;
	Guess(N);
	int ask,last = N;
	int l = 1, r = N;
	int x = m;
	ask = Guess(x);
	while (l != r)
	{
		
	if (ask == 0) {
		return (last + x)/2;		
	}
	if (ask == 1) {
		if (last < x)
		l = max(l,(last + x)/2 + 1);
		else r = min(r,(x + last - 1)/2);
	}
	else {
		if (last < x) 
		r = min(r,(last + x - 1)/2);
		else l = max(l,(x + last)/2 + 1);
	}
	if (l == r) return l;
	last = x;
	x = (l + r)/2;
	if (x == last) x++;
	ask = Guess(x);    
	}

}

Compilation message

hottercolder.cpp: In function 'int HC(int)':
hottercolder.cpp:37:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 1280 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 1280 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 1280 KB Output is correct

Subtask #4
11.0 / 25.0

# Verdict Execution time Memory Grader output
1 Partially correct 743 ms 8136 KB Output is partially correct - alpha = 0.444444444444