Submission #53007

#	Time	Username	Problem	Language	Result	Execution time	Memory
53007		SpaimaCarpatilor	Parrots (IOI11_parrots)	C++17	52 / 100	9 ms	2296 KiB

encoder

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

void encode(int N, int M[])
{
    if (N <= 16)
    {
        int sz = 0, v[200];
        for (int i=0; i<N; i++)
            for (int j=0; j<8; j++)
                v[sz ++] = (M[i] >> j) & 1;
        for (int i=0; 2 * i < sz; i++)
        {
            int msk = (i << 2) | (v[2 * i] << 1) | v[2 * i + 1];
            send (msk);
        }
    }
}

decoder

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

void decode(int N, int L, int X[])
{
    if (N <= 16)
    {
        int v[200];
        for (int i=0; i<L; i++)
        {
            int pos = X[i] >> 2;
            v[2 * pos + 1] = X[i] & 1;
            v[2 * pos] = (X[i] >> 1) & 1;
        }
        for (int j=0; j<2 * L; j+=8)
        {
            int msk = 0;
            for (int k=j; k<j + 8; k++)
                if (v[k])
                    msk |= 1 << (k - j);
            output (msk);
        }
        return ;
    }
}

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