10878: ABC159 - D - Banned K
[Creator : ]
Description
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.
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:
```
$N$
$A_1$ $A_2$ $...$ $A_N$
```
```
$N$
$A_1$ $A_2$ $...$ $A_N$
```
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.
- $1 \leq A_i \leq N$
- All values in input are integers.
Sample 1 Input
5
1 1 2 1 2
Sample 1 Output
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 2 Input
4
1 2 3 4
Sample 2 Output
0
0
0
0
No two balls have equal numbers written on them.
Sample 3 Input
5
3 3 3 3 3
Sample 3 Output
6
6
6
6
6
Any two balls have equal numbers written on them.
8
1 2 1 4 2 1 4 1
5
7
5
7
7
5
7
5