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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.  
  12.     if(mat == NULL)
  13.     {
  14.     	printf("ERROR\n");
  15. 		return 0;
  16.     }
  17.  
  18.     for(i=0; i<a; i++)
  19.     {
  20.     	mat[i] = (int*)malloc(sizeof(int) * b);
  21.  
  22.     	if(mat == NULL)
  23. 		{
  24.     		printf("ERROR\n");
  25. 			return 0;
  26.     	}
  27.     }
  28.  
  29. 	k = 1;
  30.  
  31. 	for(i=0; i<a; i++)
  32. 	{
  33.         for(j=0; j<b; j++)
  34.         {
  35.         	mat[i][j] = k;
  36.         	k++;
  37.         }
  38. 	}
  39.  
  40.     for(i=0;i<a; i++)
  41. 	{
  42.         for(j=0;j<b;j++)
  43.         {
  44.         	printf("%d ", mat[i][j]);
  45.         }
  46.         printf("\n");
  47. 	}
  48.  
  49. 	free(mat);
  50.  
  51.     return 0;
  52. }
Success #stdin #stdout 0.01s 5280KB
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https://ideone.com/M51O7G
language:
C (gcc 8.3)
created:
1 hour ago
visibility:
public

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