You will be given a list of integers, , and a single integer . You must create an array of length from elements of such that its unfairness is minimized. Call that array . Unfairness of an array is calculated as
Where:
- max denotes the largest integer in
- min denotes the smallest integer in
Example
Pick any two elements, say .
Testing for all pairs, the solution provides the minimum unfairness.
Note: Integers in may not be unique.
Function Description
Complete the maxMin function in the editor below.
maxMin has the following parameter(s):
- int k: the number of elements to select
- int arr[n]:: an array of integers
Returns
- int: the minimum possible unfairness
Input Format
The first line contains an integer , the number of elements in array .
The second line contains an integer .
Each of the next lines contains an integer where .
Constraints
Sample Input
Sample Input #01
10
4
1
2
3
4
10
20
30
40
100
200
Sample Output
Sample Output #01
3
Explanation
Explanation #01
Here ; selecting the integers , unfairness equals
max(1,2,3,4) - min(1,2,3,4) = 4 - 1 = 3