Submission #1073311

#	Time	Username	Problem	Language	Result	Execution time	Memory
1073311		fv3	Prisoner Challenge (IOI22_prison)	C++17	36.50 / 100	21 ms	1628 KiB

prison

#include "prison.h"
#include <bits/stdc++.h>

using namespace std;

vector<vector<int>> devise_strategy(int N) 
{
  vector<vector<int>> p(14 * 3 - 2, vector<int>(N+1, 1));

  int bit = 14;
  for (int i = 0; i < 14 * 3 - 2; i++)
  {
    if (i % 3 == 0)
    {
      p[i][0] = 0;
      bit--;
      for (int j = 1; j <= N; j++)
      {
        if (j & (1 << bit))
          p[i][j] = i + 2;
        else
          p[i][j] = i + 1;
      }
    }
    else if (i % 3 == 1)
    {
      for (int j = 1; j <= N; j++)
      {
        if (j & (1 << bit))
          p[i][j] = -1;
        else
          p[i][j] = i + 2;
      }
    }
    else
    {
      for (int j = 1; j <= N; j++)
      {
        if (j & (1 << bit))
          p[i][j] = i + 1;
        else
          p[i][j] = -2;
      }
    }
  }

  for (int i = 1; i <= N; i++)
  {
    if (p.back()[i] == 40)
      p.back()[i] = -1;
    else
      p.back()[i] = -2;
  }

  return p;
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 26.5 / 90