#include<stdio.h>
#include<stdlib.h>
int main()
{
int **a,r,c,i,j,;
printf("\n enter the size of row");
scanf("%d",&r);
printf("\n Enter the size of col");
scanf("%d",&c);
//allocating memory
a = (int**)malloc (r*sizeof(int*));
for(i = 0;i<r;i++)
a[i] = (int*)malloc(c*sizeof(int));
//array elements
for(i = 0;i<r;i++)
for(j = 0j<c;j++)
scanf("%d",&a[i][j]);
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how to fill the array with random numbers