# Assigning mice to holes in swift

``````import Foundation
/*
Swift 4 program for
Assign mice to holes
*/
class Deliver
{
func absValue(_ x: Int) -> Int
{
if (x < 0)
{
return -x;
}
return x;
}
func assignHole(_ mices: [Int],
_ holes: [Int],
_ n: Int,
_ m: Int)
{
if (n  != m)
{
// When mice and holes are not equal
return;
}
var result: Int = 0;
// Sort given data
let ho = holes.sorted();
let mi = mices.sorted();
var i: Int = 0;
// Find max absolute distance
while (i < n)
{
if (result < self.absValue(mi[i] - ho[i]))
{
result = self.absValue(mi[i] - ho[i]);
}
i += 1;
}
print(result);
}
static func main(_ args: [String])
{
// Position of mice
let mices: [Int] = [-3, 7, 5, 9, 16];
// Position of holes
let holes: [Int] = [1, 9, 15, 4, 14];
// Get the length
let n: Int = mices.count;
let m: Int = holes.count;
/*
-3  -2  -1  0  1     4          9        14  15
─────────────────☉─────☉──────────☉─────────☉──☉─────
♉                      ♉    ♉  ♉                ♉

-3                      5    7  9               16
Mics position
---------------------------------------------------
Step ➀ position -3  Mice are enter in nearest holes
-3  -2  -1  0  1     4          9         14 15
─────────────────☉─────☉──────────☉─────────☉──☉─────
♉  -    -  -  ┘        ♉    ♉  ♉                ♉

-3   ← Mics position

Time to move : 4
---------------------------------------------------
Step ➁ position 5 Mice are enter in nearest holes 4
-3  -2  -1  0  1     4          9        14  15
───────────────────────☉──────────☉─────────☉──☉─────
└  ♉    ♉  ♉                ♉

5 ← Mics position

Time to move : 1
---------------------------------------------------
mice ➂ position 7 are enter in nearest holes 9
-3  -2  -1  0  1     4          9        14  15
──────────────────────────────────☉─────────☉──☉─────
♉ - ┘               ♉
♉
7 ← Mics position

Time to move : 2
---------------------------------------------------
mice ➃ position 9 are enter in nearest holes 14
-3  -2  -1  0  1     4          9        14  15
────────────────────────────────────────────☉───☉─────
♉ -- - -  ┘      ♉

9 ← Mics position

Time to move : 5
--------------------------------------------------
mice ➄ position 16 are enter in nearest holes 15
-3  -2  -1  0  1     4          9        14  15
───────────────────────────────────────────────☉─────
└  ♉

Mics position->16

Time to move : 1
----------------------------------------------------
Result = 5
*/
}
}
Deliver.main([String]());``````

Output

``5``

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