101593: [AtCoder]ABC159 D - Banned K
Memory Limit:256 MB
Time Limit:2 S
Judge Style:Text Compare
Creator:
Submit:0
Solved:0
Description
Score : $400$ points
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.
Constraints
- $3 \leq N \leq 2 \times 10^5$
- $1 \leq A_i \leq N$
- All values in input are integers.
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.
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