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Submission #71184

# Submission time Handle Problem Language Result Execution time Memory
71184 2018-08-24T07:54:28 Z chhun Hotter Colder (IOI10_hottercolder) C++14
25 / 100
 761 ms 8164 KB 
#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

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
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 1272 KB Output is correct

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 28 ms 1272 KB Output isn't correct

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 28 ms 1272 KB Output isn't correct

Subtask #4
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 761 ms 8164 KB Output isn't correct - alpha = 0.000000000000