Submission #564442

#	Time	Username	Problem	Language	Result	Execution time	Memory
564442		shrimb	Question (Grader is different from the original contest) (CEOI14_question_grader)	C++17	0 / 100	1942 ms	24320 KiB

encoder

#include"bits/stdc++.h"
using namespace std;
int encode (int n, int x, int y) {
  int dif = x ^ y;
  int id = 0;
  while (!(dif & 1)) dif >>= 1, id++;
  id++;
  id<<=1;
  if (y & (1 << id)) {
      id|=1;
  }
  return id;
}

decoder

#include"bits/stdc++.h"
using namespace std;
int decode (int n, int q, int h) {
	bool flip = h&1;
	h>>=1;
	h--;
	if (q & (1 << h)) return 1^flip;
	else return 0^flip;
}

• Subtask 1: 0 / 100