HDOJ1096

Problem Description
Your task is to calculate the sum of some integers.

Input
Input contains an integer N in the first line, and then N lines follow. Each line starts with a integer M, and then M integers follow in the same line.

Output
For each group of input integers you should output their sum in one line, and you must note that there is a blank line between outputs.

Sample Input
3
4 1 2 3 4
5 1 2 3 4 5
3 1 2 3

Sample Output
10

15

6

import java.util.Scanner;class Main {    public static void main(String[] args) {        Scanner sc = new Scanner(System.in);        int n = sc.nextInt();        while(n-->0){            int m = sc.nextInt();            int sum = 0;            while(m-->0){                int a = sc.nextInt();                sum += a;            }            System.out.println(sum);            if(n>0){                System.out.println();            }        }    }}