Thread: inputting elements inside a 2 dimensional dynamically allocated array

i want to input elements inside a 2 dimensional dynamically allocated array but unfortunatley it inputs only half of the elements of the declared size here is the code

Code:

#include<stdio.h>
#include<stdlb.h>
int main(){
    int i,r,c;     // no of rows and columns
    scanf("%d",&r);
    scanf("%d",&c);
    int n=r*c;   // n is the total no of elements
    char**arr=malloc(r*c*sizeof(char*));
    for(i=0;i<n;++i)
    {
        scanf("%c",&arr[i]);
    }
     free(arr);
     return 0;
}