新手入门--输出格式八

新手入门

输出格式八：

A+B for Input-Output Practice (VIII)

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
   
   
   
   

注：两行之间输出一个空行，最后一行没有空行！

代码：

#include<stdio.h>
int main()
{
    int n,m,i,j,sum,a;
    scanf("%d",&n);
    for(i=0;i<n;i++){
        sum=0;
        scanf("%d",&m);
        for(j=0;j<m;j++){
            scanf("%d",&a);
            sum+=a;
        }
        printf("%d\n",sum);
        if(i!=n-1)
            printf("\n");
    }
    return 0;
}