2D Array by Malloc

#include <stdio.h>
#include<stdlib.h>

int main()
{
    int *a[10], n, i, j;
    for (i = 0; i < 10; i++) {
        scanf("%d", &n);

        a[i] = malloc(sizeof(int) * n);

        for (j = 0; j < n; j++) {
            scanf("%d", (*(a+i)+j));
            printf("i= %d , j= %d, a[%d][%d]=%d\n",i,j,i,j,(*(a+i)+j));
        }

    }


    /****
    C:\Users\User\OneDrive\Documents\20200401_2D_Array_Pointing.c: In function 'int main()':
C:\Users\User\OneDrive\Documents\20200401_2D_Array_Pointing.c:10:16: error: invalid conversion from 'void*' to 'int*' [-fpermissive]
   a[i] = malloc(sizeof(int) * n);
          ~~~~~~^~~~~~~~~~~~~~~~~
[Finished in 0.5s]
    ******/

    return 0;
}