HDU1096 A+B for Input-Output Practice (VIII)

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

解题思路：你的任务是计算M个数的和并输出结果。。。注意输出格式。

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