Submission #1104480

#	Time	Username	Problem	Language	Result	Execution time	Memory
1104480		M_W_13	Parrots (IOI11_parrots)	C++17	0 / 100	3 ms	1308 KiB

encoder

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

using namespace std;
typedef long long ll;
#define rep(i, n) for (int i = 0; i < (n); i++)
int dp[11][5];

void preprocess() {
    rep(j, 4) {
        dp[10][j] = 4 - j;
    }
    for (int i = 9; i >= 1; i--) {
        rep(j, 4){
            dp[i][j] = 0;
            for (int c = j; c < 4; c++) {
                dp[i][j] += dp[i + 1][c];
            }
            // cout << "i = " << i << " j = " << j << " dp = " << dp[i][j] << '\n';
        }
    }
    rep(i, 11) {
        dp[i][4] = 0;
    }
    // cout << "KON" << endl;
}


void encode(int n, int T[])
{
    preprocess();
    rep(i, n) {
        int pot = 1 << 6;
        int it = 1;
        while (it <= 10) {
            int c = 3;
            while (dp[it][c] <= T[i]) {
                c--;
            }
            // cout << "c = " << c << " x = " << i + pot * c << endl;
            T[i] -= dp[it][c + 1];
            send(i + pot * c);
            it++;
        }
        // cout << "WTH" << endl;
    }
}

decoder

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

using namespace std;
typedef long long ll;
#define rep(i, n) for (int i = 0; i < (n); i++)

int dp2[11][5];

void preprocess2() {
    rep(j, 4) {
        dp2[10][j] = 4 - j;
    }
    for (int i = 9; i >= 1; i--) {
        rep(j, 4){
            dp2[i][j] = 0;
            for (int c = j; c < 4; c++) {
                dp2[i][j] += dp2[i + 1][c];
            }
            // cout << "i = " << i << " j = " << j << " dp = " << dp[i][j] << '\n';
        }
    }
    rep(i, 11) {
        dp2[i][4] = 0;
    }
    // cout << "KON" << endl;
}

void decode(int n, int sz, int X[])
{
  preprocess2();
  vector<int> T[n];
  rep(i, sz) {
    int liczba = 0;
    int pot = 1;
    while (pot < 64) {
      if (X[i] % 2 == 1) {
        liczba += pot;
      }
      X[i] /= 2;
      pot *= 2;
    }
    T[liczba].push_back(X[i]);
  }
  rep(i, n) {
    sort(T[i].begin(), T[i].end());
    // rep(j, T[i].size()) {
    //   cout << "i = " << i << " j = " << j << " T = " << T[i][j] << endl;
    // }
    int liczba = 0;
    for (int it = 1; it <= 10; it++) {
      liczba += dp2[it][T[i][it - 1] + 1];
    }
    cout << liczba << '\n';
    output(liczba);
  }
}

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