[백준, BOJ 8393] 합 (java)

출처-https://www.acmicpc.net/problem/8393

8393번: 합

---

728x90

 

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		Scanner scan=new Scanner(System.in);
		int num=scan.nextInt();
		int sum=0;
		
		for (int i=1;i<=num;i++)
			sum+=i;
		System.out.println(sum);
	}

}