![Sum of n natural no. using {[n(n+1)]/2} || Arithmetic Programs || C++](https://blogger.googleusercontent.com/img/a/AVvXsEiCsUjSvk96Dcbb-12JDl921JHUYw38bd9nxTe1uBiy5aOb8LLB0p_xNtEZePUMAo4mEAYUVd67y4VxKZiuRKF9-6Lkp_Pw6kqHNvGL1MvEol4CzpB_YSywy0Crtoeu_zNqVZYxcdpyJjoCdnf0q2cwr0mkjedw18zBV15I6BVNkGQkVIPQYIu0eFZzRw=s16000 "Sum of n natural no. using {[n(n+1)]/2} || Arithmetic Programs || C++")
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Eg :
sum of first 5 natural numbers (5*6)/2 = 15
The Code given below can be used in TURBO C++ Compilers: -
#include <iostream.h>
#include<conio.h>
void main()
{
clrscr();
int n, sum;
cout << "Total number of n terms?\n";
cin >> n;
sum = (n * (n + 1)) / 2;
cout << "Sum of " << n << " terms are:- " << sum;
getch();
}
//.............Coded by YASH ALAPURIA
The Code given below can be used in gcc/g++ Compilers: -
#include <iostream>
using namespace std;
int main()
{
int n, sum;
cout << "Total number of n terms?\n";
cin >> n;
sum = (n * (n + 1)) / 2;
cout << "Sum of " << n << " terms are:- " << sum;
return 0;
}
//.............Coded by YASH ALAPURIA
#ENJOY CODING
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