Submission #667910

#	Time	Username	Problem	Language	Result	Execution time	Memory
667910		600Mihnea	Treasure (different grader from official contest) (CEOI13_treasure2)	C++17	44 / 100	1 ms	340 KiB

treasure

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

using namespace std;

int ask(int r1, int c1, int r2, int c2)
{
  return countTreasure(r1, c1, r2, c2);
}

const int N = 100 + 7;
int ul[N][N];
int ur[N][N];

void findTreasure(int n)
{
  int total = ask(1, 1, n, n);
  int half = (n + 1) / 2;
  for (int i = 1; i <= n; i++)
  {
    for (int j = 1; j <= n; j++)
    {
      if (j <= half + 1)
      {
        ur[i][j] = ask(1, j, i, n);
      }
      if (half <= j)
      {
        ul[i][j] = ask(1, 1, i, j);
      }
    }
  }
  for (int i = 1; i <= n; i++)
  {
    for (int j = 1; j <= half; j++)
    {
      ul[i][j] = ul[i][n] - ur[i][j + 1];
    }
  }
  for (int i = 1; i <= n; i++)
  {
    for (int  j = 1; j <= n; j++)
    {
      int val_ij = ul[i][j] - ul[i - 1][j] - ul[i][j - 1] + ul[i - 1][j - 1];
      if (val_ij)
      {
        Report(i, j);
      }
    }
  }
}

Compilation message (stderr)

treasure.cpp: In function 'void findTreasure(int)':
treasure.cpp:17:7: warning: unused variable 'total' [-Wunused-variable]
   17 |   int total = ask(1, 1, n, n);
      |       ^~~~~

• Subtask 1: 44 / 100