#P3421. Stick Lengths

Stick Lengths

当前没有测试数据。

Description

There are n sticks with some lengths. Your task is to modify the sticks so that each stick has the same length.

You can either lengthen and shorten each stick. Both operations cost x where x is the difference between the new and original length.

What is the minimum total cost?

Input Format

The first input line contains an integer n: the number of sticks.

Then there are n integers: p1,p2,,pn: the lengths of the sticks.

Output Format

Print one integer: the minimum total cost.
5
2 3 1 5 2
5

Hint

<li> 1n2105 </li> <li> 1pi109 </li>

Source

CSES