Submission #100952

#	Time	Username	Problem	Language	Result	Execution time	Memory
100952		E869120	Question (Grader is different from the original contest) (CEOI14_question_grader)	C++14	100 / 100	1641 ms	79128 KiB

encoder

int T0, E0[924][12];

int encode (int n, int x, int y) {
	if (T0 == 0) {
		for (int i = 0; i < 4096; i++) {
			int bit[12]; for (int j = 0; j < 12; j++) bit[j] = (i / (1 << j)) % 2;
			int cnt = 0;
			for (int j = 0; j < 12; j++) cnt += bit[j];
			if (cnt == 6) {
				for (int j = 0; j < 12; j++) E0[T0][j] = bit[j];
				T0++;
			}
		}
	}
	
	for (int i = 0; i < 12; i++) {
		if (E0[x][i] == 1 && E0[y][i] == 0) return i + 1;
	}
}

decoder

int T1 = 0, E1[924][12];

int decode (int n, int q, int h) {
	if (T1 == 0) {
		for (int i = 0; i < 4096; i++) {
			int bit[12]; for (int j = 0; j < 12; j++) bit[j] = (i / (1 << j)) % 2;
			int cnt = 0;
			for (int j = 0; j < 12; j++) cnt += bit[j];
			if (cnt == 6) {
				for (int j = 0; j < 12; j++) E1[T1][j] = bit[j];
				T1++;
			}
		}
	}

	return E1[q][h - 1];
}

Compilation message (stderr)

encoder.cpp: In function 'int encode(int, int, int)':
encoder.cpp:19:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

• Subtask 1: 100 / 100