Number rectangle structure

Q. Write a C program to display the following number structure:


1234554321
1234__4321
123____321
12______21
1________1


Ans.


/* c program for number rectangle or number pyramid*/
#include<stdio.h>
#include<conio.h>
int main()
{
 int num,c,sp,r=1;
 printf("Enter loop repeat number(rows): ");
 scanf("%d",&num);
 printf("\n");
 for(; num>=1; num--,r++)
 {
  for(c=1; c<=num; c++)
     printf("%d",c);
  for(sp=r; sp>1; sp--)
     printf("_");
  for(sp=r; sp>1; sp--)
     printf("_");
  for(c=num; c>=1; c--)
     printf("%d",c);
  printf("\n");
 }
 getch();
 return 0;
}


/***************Output****************/

Screen-shot for number pyramid structure of C program