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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. struct matriz{
  5.     int** elemento;
  6.     int nlinhas;
  7.     int ncolunas;
  8. };
  9.  
  10. typedef struct matriz Matriz;
  11.  
  12. Matriz* inicializaMatriz(int nlinhas, int ncolunas){
  13.     Matriz* mat = malloc(sizeof(Matriz));
  14.     mat->elemento = malloc(sizeof(int*) * nlinhas);
  15.     mat->nlinhas = nlinhas;
  16.     mat->ncolunas = ncolunas;
  17.  
  18.     int i;
  19.     for (i = 0; i < nlinhas; ++i){
  20.         mat->elemento[i] = malloc(sizeof(int) * ncolunas);
  21.     }
  22.     return mat;
  23. }
  24.  
  25. void modificaElemento(Matriz* mat, int linha, int coluna, int elem){
  26.     mat->elemento[linha][coluna] = elem;
  27. }
  28.  
  29. int main() {
  30.  
  31.     Matriz* mat = inicializaMatriz(5, 3);
  32.     modificaElemento(mat, 1, 1, 15);
  33.     printf("%d", mat->elemento[1][1]);
  34.  
  35.     return 0;
  36. }
  37.  
Success #stdin #stdout 0s 4296KB
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15
https://ideone.com/icVHEH
language:
C (gcc 8.3)
created:
4 years ago
visibility:
public

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