Program in C to print the character pyramid

Write a C program to print the following character pyramid as:

ABCD

BCDA

CDAB

DABC

Solution:

#include<stdio.h>

int main()

{

          char ch,r,c,t;

          printf("Enter any character : ");

          scanf("%c", &ch);

          if(ch>='a' && ch<='z')

                   ch = ch - 32;

          for(r='A'; r<=ch; r++)

          {

                   for(c=r; c<=ch; c++)

                             printf("%c",c);

                   for(t='A'; t<r; t++)

                             printf("%c",t);

                   printf("\n");

          }

          return 0;

}