Submission #934576

#	Time	Username	Problem	Language	Result	Execution time	Memory
934576		KebabuVaikis15	Parrots (IOI11_parrots)	C++14	81 / 100	3 ms	1336 KiB

encoder

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

void encode(int N, int M[])
{
    if (N<=32)
    {
        for (int i=0; i<N; i++)
            for (int j=0; j<8; j++)
                if (M[i]&(1<<j))
                    send((j<<5)+i);
    }
    else
    {
        for (int i=0; i<N; i++)
            for (int j=0; j<4; j++)
                for (int k=0; k<(M[i]>>2*j)&3; k++)
                    send((j<<6)+i);
    }
}

decoder

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

void decode(int N, int L, int X[])
{
    int M[N]={0};
    if (N<=32)
        for (int i=0; i<L; i++)
            M[X[i]&((1<<5)-1)]+=(1<<(X[i]>>5));
    else
        for (int i=0; i<L; i++)
            M[X[i]&((1<<6)-1)]+=(1<<(2*(X[i]>>6)));
    for (int i:M)
        output(i);
}

Compilation message (stderr)

encoder.cpp: In function 'void encode(int, int*)':
encoder.cpp:17:32: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
   17 |                 for (int k=0; k<(M[i]>>2*j)&3; k++)
      |                               ~^~~~~~~~~~~~

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