제출 #232802

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
232802		AlexLuchianov	Broken Device (JOI17_broken_device)	C++14	0 / 100	73 ms	3072 KiB

Anna

#include "Annalib.h"
#include <iostream>

using ll = long long;
  namespace Alice{
  int const nmax = 150;
  int const modulo = 1000000007;
  int const base = 13;
  int const rest = 7;


  int block[1 + nmax];
  int v[1 + nmax];

  int root;

  int myrand(){
    root = (1LL * root * base + rest) % modulo;
    return root;
  }

  void staticshuffle(int n){
    for(int i = 0; i < n; i++)
      v[i] = i;
    for(int i = 0; i < 3 * n; i++){
      int x = myrand() % n;
      int y = myrand() % n;

      std::swap(v[x], v[y]);
    }
  }
}
using namespace Alice;

void Anna( int n, long long X, int k, int P[] ){
  root = 1;
  staticshuffle(n);

  for(int i = 0; i < k; i++)
    block[P[i]] = 1;

  for(int i = 0; i < n; i += 2){
    if(X == 0 || block[v[i]] == 1 || block[v[i + 1]] == 1) {
      Set(v[i], 0);
      Set(v[i + 1], 0);
    } else {
      int number = X % 3 + 1;
      X /= 3;
      Set(v[i], (0 < (number & 2)));
      Set(v[i + 1], (number & 1));
    }
  }
}
/*
2
150 14 1
2
150 9 2
0 1

*/

Bruno

#include "Brunolib.h"
#include <iostream>

using ll = long long;

namespace Ban{
  int const nmax = 150;
  int const modulo = 1000000007;
  int const base = 13;
  int const rest = 7;

  int v[1 + nmax];

  int root;

  int myrand(){
    root = (1LL * root * base + rest) % modulo;
    return root;
  }

  void staticshuffle(int n){
    for(int i = 0; i < n; i++)
      v[i] = i;
    for(int i = 0; i < 3 * n; i++){
      int x = myrand() % n;
      int y = myrand() % n;
      std::swap(v[x], v[y]);
    }
  }
}
using namespace Ban;

long long Bruno(int n, int A[] ){
  root = 1;
  staticshuffle(n);
  ll result = 0;
  for(int i = n - 2; 0 <= i; i -= 2){
    if(A[v[i]] == 0 && A[v[i + 1]] == 0) {
      continue;
    } else {
      int number = (v[i]<<1) + v[i + 1] - 1;
      result = result * 3 + number;
    }
  }
  return result;
}

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