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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int main(){
  5.     int i,j,k;
  6.     int a,b;
  7.     int **mat;
  8.     scanf("%d %d",&a,&b);
  9.  
  10. mat=(int**)malloc(sizeof(int*)*a);
  11. if(mat==NULL){
  12. printf("ERROR\n");
  13. return 0;}
  14.  
  15. for(i=0;i<a;i++){
  16. mat[i]=(int*)malloc(sizeof(int)*b);
  17. if(mat[i]==NULL){
  18. printf("ERROR\n");
  19. return 0;}}
  20.  
  21. k=1;
  22. for(i=0;i<a;i++){
  23.    for(j=0;j<b;j++){
  24.    mat[i][j]=k++;}}
  25.  
  26.  
  27.     for(i=0;i<a;i++){
  28.         for(j=0;j<b;j++){
  29.             printf("%d ",mat[i][j]);
  30.         }
  31.         printf("\n");
  32.     }
  33.     for(i=0;i<a;i++){
  34.         free(mat[i]);
  35.     }
  36.     free(mat);
  37.     return 0;
  38. }
  39.  
Success #stdin #stdout 0s 5284KB
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stdout
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https://ideone.com/a9eRDQ
language:
C (gcc 8.3)
created:
12 days ago
visibility:
public

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