题目描述
Problem Statement
We have N balls. The i-th ball has an integer A_i written on it.
For each k=1, 2, ..., N, solve the following problem and print the answer.
- Find the number of ways to choose two distinct balls (disregarding order) from the N-1 balls other than the k-th ball so that the integers written on them are equal.
Input
Input is given from Standard Input in the following format:
N
A_1 A_2 ... A_N
Output
For each k=1,2,...,N, print a line containing the answer.
Constraints
- $3 \leq N \leq 2 \times 10^5$
- $1 \leq A_i \leq N$
- All values in input are integers.
Sample Input 1
5
1 1 2 1 2
Sample Output 1
2
2
3
2
3
Consider the case k=1 for example. The numbers written on the remaining balls are 1,2,1,2.
From these balls, there are two ways to choose two distinct balls so that the integers written on them are equal.
Thus, the answer for k=1 is 2.
Sample Input 2
4
1 2 3 4
Sample Output 2
0
0
0
0
No two balls have equal numbers written on them.
Sample Input 3
5
3 3 3 3 3
Sample Output 3
6
6
6
6
6
Any two balls have equal numbers written on them.
Sample Input 4
8
1 2 1 4 2 1 4 1
Sample Output 4
5
7
5
7
7
5
7
5
输入格式
见题面 Input 部分
输出格式
见题面 Output 部分