Submission #7098

#	Time	Username	Problem	Language	Result	Execution time	Memory
7098		tncks0121	질문 (CEOI14_question_grader)	C11	27 / 100	1622 ms	25676 KiB

encoder

int encode (int n, int x, int y) {
  int k;
  for(k = 0; k <= 9; k++) {
    if(((x >> k) ^ (y >> k)) & 1) {
      int t = (x >> k) & 1;
      return k * 2 + t + 1;
    }
  }
  return -1;
}

decoder

int decode (int n, int q, int h) { 
  --h;
  int b = h & 1, k = h >> 1;
  return (((q >> k) & 1) == b);
}

• Subtask 1: 27 / 100