Submission #595958

#	Time	Username	Problem	Language	Result	Execution time	Memory
595958		proma	Parrots (IOI11_parrots)	C++17	81 / 100	5 ms	1264 KiB

encoder

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

using namespace std;

void encode(int N, int M[]) {
    for (int i = 0; i < N; i ++) {
        bitset<8>bs(M[i]);
        for (int j = 0; j < 8; j ++) {
            if (bs[j]) {
                int x = j;
                int pos = i;
                for (int k = 3; k < 8; k ++) {
                    x += (pos % 2) * (1 << k);
                    pos /= 2;
                }
                send(x);
            }
        }
    }
}

decoder

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

using namespace std;

void decode(int N, int L, int X[]) {
    vector <int> res(N);
    for (int i = 0; i < L; i ++) {
        bitset<8>bs(X[i]);
        int whichBit = 0;
        for (int j = 0; j < 3; j ++) {
            whichBit += bs[j] * (1 << j);
        }
        int pos = 0;
        for (int j = 3; j < 8; j ++) {
            pos += bs[j] * (1 << (j - 3));
        }
        res[pos] += (1 << whichBit);
    }
    for (auto i: res) {
//        std::cout << i << " ";
        output(i);
    }// std::cout << std::endl;
}

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