Java 數數愛明明

題目: 數數愛明明

import java.util.Scanner;

public class CountingTwo{
    public static Scanner sc = new Scanner(System.in);
 
 
    public static void main(String args[]){
        while(sc.hasNext()){
            Long n = sc.nextLong();
            Long f = ((1 + n)*n)/2;
            Long g = (f*(n+2))/3;
            System.out.println(f + " " + g);
        }
    }
}

參考網站