Submission #37041

#	Time	Username	Problem	Language	Result	Execution time	Memory
37041		aome	Question (Grader is different from the original contest) (CEOI14_question_grader)	C++14	100 / 100	1922 ms	27480 KiB

encoder

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

namespace Encoder {
	int mask[925], id;
	bool flag;

	void label() {
		if (flag) return; flag = 1;
		for (int i = 0; i < (1 << 12); ++i) {
			if (__builtin_popcount(i) != 6) continue;
			mask[++id] = i; 
		}
	}	
}

int encode(int N, int x, int y) {
	Encoder::label();
	for (int i = 0; i < 12; ++i) {
		bool X = Encoder::mask[x] >> i & 1;
		bool Y = Encoder::mask[y] >> i & 1;
		if (X == 1 && Y == 0) return i + 1;
	}
}

decoder

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

namespace Decoder {
	int mask[925], id;
	bool flag;

	void label() {
		if (flag) return; flag = 1;
		for (int i = 0; i < (1 << 12); ++i) {
			if (__builtin_popcount(i) != 6) continue;
			mask[++id] = i; 
		}
	}	
}

int decode(int N, int q, int h) {
	Decoder::label();
	return Decoder::mask[q] >> (h - 1) & 1;
}

Compilation message (stderr)

encoder.cpp: In function 'int encode(int, int, int)':
encoder.cpp:24:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

• Subtask 1: 100 / 100