Add Natural Numbers Problem Code: ADDNATRL
Output is correct but after submission its showing wrong answer
My Code
/* package codechef; // don’t place package name! */
import java.util.;
import java.lang.;
import java.io.*;
/* Name of the class has to be “Main” only if the class is public. /
class Codechef
{
public static void main (String[] args) throws java.lang.Exception
{
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
int sum=0;
sum = (n(n+1))/2;
System.out.println(sum);
}
}