Submission #51722

#	Time	Username	Problem	Language	Result	Execution time	Memory
51722		kimjg1119	Parrots (IOI11_parrots)	C11	81 / 100	12 ms	2664 KiB

encoder

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

typedef unsigned char uc;

void encode(int N, int M[])
{
    for(int i=0; i<N; i++)
    {
        uc k=M[i];
        uc x=(uc)i;
        x=(x<<3);
        for(int j=0; j<8; j++)
        {
            uc t=x;
            if(k&(1<<j))
            {
                t|=j;
                send(t);
            }
        }
    }
}

decoder

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

typedef unsigned char uc;

void decode(int N, int L, int X[])
{
    uc ans[32]={};
    for(int i=0;i<L;i++)
    {
        int t=X[i];
        int pos=(t>>3);
        int bit=(t&7);
        ans[pos]|=(uc)(1<<bit);
    }
    for(int i=0;i<N;i++)
        output((int)ans[i]);
}

Compilation message (stderr)

grader_decoder.c: In function 'main':
grader_decoder.c:86:2: warning: implicit declaration of function 'fcloseall'; did you mean 'fclose'? [-Wimplicit-function-declaration]
  fcloseall();
  ^~~~~~~~~
  fclose

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