题目描述
Given an array A of N numbers, find the number of distinct pairs (i, j) such that j ≥i and A[i] = A[j].
First line of the input contains number of test cases T. Each test case has two lines, first line is the number N, followed by a line consisting of N integers which are the elements of array A.
For each test case print the number of distinct pairs.
Constraints
1 ≤ T ≤ 10
1 ≤ N ≤ 10^6
-10^6 ≤ A[i] ≤ 10^6 for 0 ≤ i < N
SAMPLE INPUT
3
4
1 2 3 4
3
1 2 1
5
1 1 1 1 1
SAMPLE OUTPUT
4
4
15
输入格式
见题面
输出格式
见题面
样例输入
3
4
1 2 3 4
3
1 2 1
5
1 1 1 1 1
SAMPLE
样例输出
4
4
15