Submission #601390

#	Time	Username	Problem	Language	Result	Execution time	Memory
601390		vh50	Parrots (IOI11_parrots)	C++17	0 / 100	2 ms	1156 KiB

encoder

#include <bits/stdc++.h>
#include "encoder.h"
#include "encoderlib.h"
using namespace std;
void encode(int N, int M[])
{
    for(int i = 0; i < N; i++)
    {
        for(int j = 0; j < 4; j++)
        {
            int aux;
            aux = (i << 4) + (j << 2);
            aux += (M[i] & (3 << (2 * j))) >> (2 * j); 
            send(aux);
            if(i > 15) send(aux);
        }
    }
}

decoder

#include <bits/stdc++.h>
#include "decoder.h"
#include "decoderlib.h"
using namespace std;
void decode(int N, int L, int X[])
{
    int marc[300];
    for(int i = 0; i < L; i++)  marc[X[i]]++;
    sort(X, X + L);
    for(int i = 0; i < L; i += 4)
    {
        int aux = 0;
        for(int j = 0; j < 4; j++)
        {
            if(marc[X[i + j]] == 2) continue;
            if(X[i + j] & 1)    aux += (1 << (2 * j)); 
            if(X[i + j] & 2)    aux += (1 << (2 * j + 1));
        }   
        if(aux) output(aux); 
    }
    for(int i = 0; i < L; i += 4)
    {
        int aux = 0;
        for(int j = 0; j < 4; j++)
        {
            if(marc[X[i + j]] == 1) continue;
            if(X[i + j] & 1)    aux += (1 << (2 * j)); 
            if(X[i + j] & 2)    aux += (1 << (2 * j + 1));
        }    
        if(aux) output(aux);
    }
    
}

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