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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int** allocMatrix2D(int dim1, int dim2);
  5. void deleteMatrix2D(int**& matrix2d, unsigned int dim1);
  6.  
  7. int main(void) 
  8. {
  9.     int szerokosc = 20; //17
  10.     int wysokosc = 21; //25
  11.  
  12.     int** SiatkaPlanszy = allocMatrix2D(szerokosc, wysokosc);
  13.  
  14.     for( int lw = 0; lw < wysokosc; lw++)
  15.         SiatkaPlanszy[0][lw] = -1;
  16.  
  17.     for( int pw = 0; pw < wysokosc; pw++)
  18.         SiatkaPlanszy[szerokosc-1][pw] = -1;
  19.  
  20.     for( int p = 0; p < szerokosc; p++)
  21.         SiatkaPlanszy[p][wysokosc-1] = -1;
  22.  
  23.     deleteMatrix2D(SiatkaPlanszy, szerokosc);
  24. }
  25.  
  26. int** allocMatrix2D(int dim1, int dim2) 
  27. {
  28.     int** matrix2d = new int*[dim1];
  29.     for(int i = 0; i < dim1; i++)
  30.     {
  31.         matrix2d[i] = new int[dim2];
  32.     }
  33.     return matrix2d;
  34. }
  35.  
  36. void deleteMatrix2D(int**& matrix2d, unsigned int dim1) 
  37. {
  38.     for(int i = 0; i < dim1; i++)
  39.         delete [] matrix2d[i];
  40.  
  41.     delete [] matrix2d;
  42.     matrix2d = 0;
  43. }
Success #stdin #stdout 0s 3468KB
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https://ideone.com/beqH9V
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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