Submission #717737

#	Time	Username	Problem	Language	Result	Execution time	Memory
717737		ZeroCool	Parrots (IOI11_parrots)	C++14	52 / 100	3 ms	1044 KiB

encoder

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


void encode(int n, int A[])
{
      for (int i = 0; i < n; i++) {
        send((i << 4) | 0 | ((A[i] >> 0) & 3));
        send((i << 4) | 4 | ((A[i] >> 2) & 3));
        send((i << 4) | 8 | ((A[i] >> 4) & 3));
        send((i << 4) | 12 | ((A[i] >> 6) & 3));
    }

    
  }

decoder

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



void decode(int n, int l, int x[])
{


    int m[n] = {0};

    for (int i = 0; i < l; i++) {
        switch (x[i] & 12) {
            case 0: m[x[i] >> 4] |= (x[i] & 3) << 0; break;
            case 4: m[x[i] >> 4] |= (x[i] & 3) << 2; break;
            case 8: m[x[i] >> 4] |= (x[i] & 3) << 4; break;
            case 12: m[x[i] >> 4] |= (x[i] & 3) << 6; break;
        }
    }
    for(int i = 0;i<n;i++)output(m[i]);
}

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