Submission #796004

#	Time	Username	Problem	Language	Result	Execution time	Memory
796004		hgmhc	Parrots (IOI11_parrots)	C++17	52 / 100	4 ms	1312 KiB

encoder

#include "encoder.h"
#include "encoderlib.h"

void encode(int n, int a[])
{
  for (int i = 0; i < n; ++i) {
    for (int j = 0; j < 4; ++j) {
      send(i | (j << 4) | ((a[i]>>(2*j)&0b11) << 6));
    }
  }
}

decoder

#include "decoder.h"
#include "decoderlib.h"

void decode(int n, int l, int x[])
{
  int ans[20]{};
  for (int k = 0; k < l; ++k) {
    int i = x[k]&0b1111;
    int j = x[k]>>4&0b11;
    int v = x[k]>>6&0b11;
    ans[i] |= v<<(2*j);
  }
  for (int i = 0; i < n; ++i)
    output(ans[i]);
}

• Subtask 1: 17 / 17
• Subtask 2: 17 / 17
• Subtask 3: 18 / 18
• Subtask 4: 0 / 29
• Subtask 5: 0 / 19