16. Design numbers tringle pyramid

Q. Write a program to generate a following numbers triangle:(Where user entered number through keyboard, for example if num=5)

1	2	3	4	5
	1	2	3	4
		1	2	3
			1	2
				1

Ans.

/*c program for number triangle pyramid*/

#include<stdio.h>

#include<conio.h>

int main()

{

 int num,r=1,c,sp;

 printf("Enter loop repeat number(rows):");

 scanf("%d",&num);

 for(; num>=1; num--,r++)

 {

  for(sp=r; sp>1; sp--)

     printf(" ");

  for(c=1; c<=num; c++)

     printf("%d",c);

  printf("\n");

 }
 getch();

 return 0;

}
/****************OUTPUT***********
Enter loop repeat number(rows): 5

1	2	3	4	5
	1	2	3	4
		1	2	3
			1	2
				1

********************************/