Submission #615945

#	Time	Username	Problem	Language	Result	Execution time	Memory
615945		Minindu2006	Rectangles (IOI19_rect)	C++14	50 / 100	5041 ms	49392 KiB

rect

#include "rect.h"
#include <bits/stdc++.h>
using namespace std;

long long count_rectangles(vector<vector<int>> a)
{
  int n = a.size(), m = a[0].size();
  long long ans = 0;
  for (int i1 = 1; i1 < n - 1; i1++)
  {
    for (int j1 = 1; j1 < m - 1; j1++)
    {
      for (int i2 = i1; i2 < n - 1; i2++)
      {
        if (a[i2][j1] >= a[i2][j1 - 1] || a[i2][j1] >= a[i1 - 1][j1])
          break;
        int cont = 0;
        for (int j2 = j1; j2 < m - 1; j2++)
        {
          if (cont == 1)
            break;
          int can = 1;
          for (int x = i1; x <= i2; x++)
          {
            if (!can)
              break;
            for (int y = j1; y <= j2; y++)
            {
              if (!can)
                break;
              if (a[x][y] >= a[i1 - 1][y] || a[x][y] >= a[i2 + 1][y] || a[x][y] >= a[x][j1 - 1] || a[x][y] >= a[x][j2 + 1])
                can = 0;

              if (can == 0)
                cont = (a[x][y] >= a[i1 - 1][y] || a[x][y] >= a[i2 + 1][y] || a[x][y] >= a[x][j1 - 1]);
            }
          }
          ans += can;
        }
      }
    }
  }
  return ans;
}

• Subtask 1: 8 / 8
• Subtask 2: 7 / 7
• Subtask 3: 12 / 12
• Subtask 4: 0 / 22
• Subtask 5: 10 / 10
• Subtask 6: 13 / 13
• Subtask 7: 0 / 28