Submission #126026

#	Time	Username	Problem	Language	Result	Execution time	Memory
126026		eriksuenderhauf	Question (Grader is different from the original contest) (CEOI14_question_grader)	C++11	100 / 100	1593 ms	79680 KiB

encoder

#include <bits/stdc++.h>
const int MAXN = 1e3 + 5;
int cnt = 1, a[MAXN];

int encode(int n, int x, int y) {
    if (cnt == 1) {
      for (int i = 0; i < (1 << 12); i++) {
          if (__builtin_popcount(i) != 6)
              continue;
          a[cnt++] = i;
      }
    }
	for (int i = 0; i < 12; i++) {
		if ((a[y] >> i) & 1)
			continue;
		if (!((a[x] >> i) & 1))
			continue;
		return i+1;
	}
    return -1;
}

decoder

#include <bits/stdc++.h>
const int MAXN = 1e3 + 5;
int cnt = 1, a[MAXN];

int decode(int n, int q, int h) {
    if (cnt == 1) {
      for (int i = 0; i < (1 << 12); i++) {
          if (__builtin_popcount(i) != 6)
              continue;
          a[cnt++] = i;
      }
    }
	if ((a[q] >> (h-1)) & 1)
		return 1;
	else
		return 0;
}

• Subtask 1: 100 / 100