Submission #42311

#	Time	Username	Problem	Language	Result	Execution time	Memory
42311		hsb154	Question (Grader is different from the original contest) (CEOI14_question_grader)	C++14	27 / 100	1668 ms	80888 KiB

encoder

int encode (int n, int x, int y) {
	int i;
	int cnt = 0;
	for (i = 0;; i++) {
		if ((x&(1 << i)) != (y & (1 << i))) {
			if (x&(1 << i))
				return i +10+1;
			else
				return i+1;
		}
	}
}

decoder

int decode (int n, int q, int h) {
	h -= 1;
	if (h>=10&&(q & (1 << (h%10))))
		return 1;
	if (h < 10 && (q & (1 << (h%10))) == 0)
		return 1;
	return 0;
		
}

Compilation message (stderr)

encoder.cpp: In function 'int encode(int, int, int)':
encoder.cpp:3:6: warning: unused variable 'cnt' [-Wunused-variable]
  int cnt = 0;
      ^

• Subtask 1: 27 / 100