Number Character Triangle

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

1
21A
321AB
4321ABC
54321ABCD

Ans.

/*c program for number character triangle*/
#include<stdio.h>
int main()
{
 int num,r,c,p,z;
 printf("Enetr no. of rows : ");
 scanf("%d", &num);
 for(r=1; r<=num; r++)
 {
  for(c=r; c>=1; c--)
      printf("%d",c);
  for(z='A',p=r; p>1; p--,z++)
      printf("%c",z);
  printf("\n");
 }
 getch();
 return 0;
}

The output of above program would be:

Figure: Screen shot for number character pyramid C program