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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4.  
  5. int main(){
  6.     int i,j,k;
  7.     int a,b;
  8.     int **mat;
  9.     scanf("%d %d",&a,&b);
  10.  
  11. 	mat=(int**)malloc(sizeof(int*)*a);
  12.  
  13.     for(i=0;i<a;i++){
  14.     mat[i]=(int*)malloc(sizeof(int)*b);
  15.     		if(mat[i]== NULL){
  16.         	printf("ERROR\n");
  17.         	return 0;
  18.     }
  19.     }
  20.  
  21.  
  22. 	for(i=0;i<a;i++){
  23. 		for(j=0;j<b;j++){
  24. 			mat[i][j]=k;
  25. 			k++;
  26. 		}
  27. 	}
  28.  
  29.  
  30.     for(i=0;i<a;i++){
  31.         for(j=0;j<b;j++){
  32.             printf("%d ",mat[i][j]);
  33.         }
  34.         printf("\n");
  35.     }
  36.  
  37.     for(i=0;i<a;i++)
  38.   {
  39.     free(mat[a]);
  40.   }
  41.   free(mat);
  42.  
  43.     return 0;
  44. }
  45.  
Success #stdin #stdout 0s 5280KB
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https://ideone.com/rKkDzb
2-1
language:
C (gcc 8.3)
created:
12 days ago
visibility:
public

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