program to a program N Triangular Number

84./*Write a program to a program N Triangular Number*/

#include<stdio.h>

#include<conio.h>

main()

{

            int n,i=1,sum=0;

            clrscr();

            printf("Enter any value");

            scanf("%d",&n);

            while(i<=n)

            {

             sum=sum+i;

             printf("N Triangular of %d is %d\n",sum);

             i++;

             }

             getch();

 }

OUTPUT

            Enter any value: 4

            N Triangular of 1 is 2400

            N Triangular of 3 is 2400

            N Triangular of 6 is 2400

            N Triangular of 10 is 2400