- Time limit: 1.00 s
- Memory limit: 512 MB
You are given an array of n integers. Your task is to calculate the number of inversions in each window of k elements, from left to right.
An inversion is a pair of elements where the left element is larger than the right element.
Input
The first line contains two integers n and k: the number of elements and the size of the window.
Then there are n integers x_1,x_2,\ldots,x_n: the contents of the array.
Output
Print n-k+1 values: the numbers of inversions.
Constraints
- 1 \le k \le n \le 2 \cdot 10^5
- 1 \le x_i \le 10^9
Example
Input:
8 3 1 2 3 2 5 2 4 4
Output:
0 1 1 1 2 0