#5631. Sliding Window Advertisement
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Sliding Window Advertisement
Sliding Window Advertisement
A fence consists of n vertical boards. The width of each board is 1 and their heights may vary. You want to attach a rectangular advertisement to the fence. Your task is to calculate the maximum area of such an advertisement in each window of k vertical boards, from left to right.
Input
The first line contains two integers n and k: the width of the fence and the size of the window. After this, there are n integers x_1, x_2, \dots, x_n: the height of each board.
Output
Print n - k + 1 integers: the maximum areas of the advertisements.
Constraints
Example
Input
8 3
4 1 5 3 3 2 4 1
Output
5 6 9 6 6 4