Submission #4324

#	Time	Username	Problem	Language	Result	Execution time	Memory
4324		kipa00	Parrots (IOI11_parrots)	C++98	52 / 100	5 ms	2280 KiB

encoder

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

void encode(int N, int M[]) {
  int i, j;
  for (i=0; i<N; ++i) {
    for (j=0; j<4; ++j) {
      send((i << 4) | (j << 2) | ((M[i] >> (j << 1)) & 0x3));
    }
  }
}

decoder

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

void decode(int N, int L, int X[]) {
  int res[16], i;
  for (i=0; i<N; ++i) {
    res[i] = 0;
  }
  for (i=0; i<L; ++i) {
    res[X[i] >> 4] |= (X[i] & 0x3) << (((X[i] >> 2) & 0x3) << 1);
  }
  for (i=0; i<N; ++i) {
    output(res[i]);
  }
}

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