Submission #573309

#	Time	Username	Problem	Language	Result	Execution time	Memory
573309		TimDee	Parrots (IOI11_parrots)	C++14	24 / 100	12 ms	1368 KiB

encoder

#include "encoder.h"
#include "encoderlib.h"
#define forn(i,n) for (int i=0; i<n; i++)

void encode(int n, int message[]) {
    forn(i,n) {
        int x=message[i];
        int add=i*4;
        int a=x%4;
        forn(i,a) send(add);
        x/=4;
        a=x%4;
        forn(i,a) send(add+1);
        x/=4;
        a=x%4;
        forn(i,a) send(add+2);
        x/=4;
        a=x%4;
        forn(i,a) send(add+3);
        x/=4;
    }
}

decoder

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

#define forn(i,n) for (int i=0; i<n; i++)

struct node {
    int fcnt=0,scnt=0,tcnt=0,pcnt=0;
};

void decode(int N, int L, int message[]) {
    int a[N];
    node v[N];
    forn(i,N) a[i]=0;
    forn(i,L) {
        int x=message[i];
        int j=x/4;
        int k=x%4;
        if (k==0) {
            v[j].fcnt++;
        } else if (k==1) {
            v[j].scnt++;
        } else if (k==2) {
            v[j].tcnt++;
        } else {
            v[j].pcnt++;
        }
    }
    forn(i,N) {
        int fcnt=v[i].fcnt;
        a[i]+=fcnt;
        int scnt=v[i].scnt;
        a[i]+=scnt*4;
        int tcnt=v[i].tcnt;
        a[i]+=tcnt*16;
        int pcnt=v[i].pcnt;
        a[i]+=pcnt*64;
        output(a[i]);
    }
}

• Subtask 1: 17 / 17
• Subtask 2: 0 / 17
• Subtask 3: 0 / 18
• Subtask 4: 0 / 29
• Subtask 5: 7 / 19