The first line of the input contain

The first line of the input contains an integer T(1

結果 (英文) 1:

The first line of the input contains an integer T(1<=T<=20) which means the number of test cases. Then T lines follow, each line starts with a number N(1<=N<=100000), then N integers followed(all the integers are between -1000 and 1000).

結果 (英文) 3:

输入的第一行包含一个整数t（1 < = T = 20），这意味着测试用例的数量。然后T行跟随，每一行开始一个数字n（1个= n = 100000），然后n个整数（所有的整数都在1000和1000之间）。