Letter pattern

Firstly we will take a for loop(outer) for no of rows.

Print spaces
For every ith row , print n-i spaces.

Print letters
For every ith row , print i letters.Also remember letters are printed in descending order.

#include<stdio.h>

int main()
{
    int i,j,n;

    printf("Enter number of rows ");
    scanf("%d",&n);

    for(i=65;i<=68;i++)
    {
        for(j=i;j<68;j++)
             printf(" "); 

        for(j=i;j>=65;j--)
             printf("%c",j);

        printf("\n");
    }   

    return 0;
}