Submission #228033

#	Time	Username	Problem	Language	Result	Execution time	Memory
228033		muhammad_hokimiyon	Parrots (IOI11_parrots)	C++14	81 / 100	13 ms	1792 KiB

encoder

#include "encoder.h"
#include "encoderlib.h"
#include <bits/stdc++.h>

#define fi first
#define se second
#define ll long long
#define dl double long

using namespace std;

void encode(int n, int a[])
{
    for( int i = 0; i < n; i++ ){
        for( int j = 0; j < 3; j++ ){
            int x = i;
            for( int h = 5; h < 8; h++ ){
                if( ( (a[i] >> (min(7 , j * 3 + h - 5))) & 1) ){
                    if( j * 3 + h - 5 <= 7 )x += (1 << h);
                }
            }
            if( x == i )continue;
            for( int g = 1; g <= (1 << j); g++ ){
                send( x );
            }
        }
    }
}

decoder

#include "decoder.h"
#include "decoderlib.h"
#include <bits/stdc++.h>

#define fi first
#define se second
#define ll long long
#define dl double long

using namespace std;

void decode(int n, int l, int a[])
{
    map < int , int > m;
    for( int i = 0; i < l; i++ ){
        m[a[i]] += 1;
    }
    vector < int > ans(n , 0);
    for( auto x : m ){
        int p = 0;
        for( int j = 0; j < 5; j++ ){
            if( (x.fi & (1 << j)) )p |= (1 << j);
        }
        int val = 0;
        for( int g = 0; g < 3; g++ ){
            if( !(x.se & (1 << g)) )continue;
            for( int j = 0; j < 3; j++ ){
                if( (( x.fi >> (5 + j) ) & 1) ){
                    if( g * 3 + j <= 7 )ans[p] |= (1 << (g * 3 + j) );
                }
            }
        }
    }
    for( int i = 0; i < n; i++ ){
        output( ans[i] );
    }
}

Compilation message (stderr)

decoder.cpp: In function 'void decode(int, int, int*)':
decoder.cpp:24:13: warning: unused variable 'val' [-Wunused-variable]
         int val = 0;
             ^~~

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