Mr Y and his Transport Problem

[keivalya]

Mr X has a huge transport business, where his company provides trucks to transfer goods. Mr Y has a manufacturing facility where it has N number of loading areas. Mr Y orders N trucks from Mr X for transportation of each of its manufactured products. One day the trucks were misaligned corresponding to their loading areas. Mr Y wants to swap trucks one by one to place them at their true positions in such a way that there is a minimum number of swaps between trucks. Note that all trucks are already at the misplaced loading area, swap occurs between two trucks at a time and truck is numbered based on its loading area number that is both loading area and truck have the same number and loading area are denoted by 1 to N.

Input:
1 <= N <= 50
1st Line: integer N which denotes the number of loading areas
2nd Line: N space-separated integers denoting truck numbers parked on 1 to N loading area.

Output:
Number denoting a minimum number of swaps.

Sample input
10
1 3 2 4 9 6 7 5 8 10

Sample output
3

[JINDAL-JJ]

I can do this code in Python. Please mention the folder to add this code and assign me over this issue. Thank You!

[BassCoder2808]

I have solved the above problem in Python. It's time complexity is O(n log(n)).
Here is the SS for the above solved example.
PS C:\Users\vedant jolly\Desktop> python .\hacktober.py
10
1 3 2 4 9 6 7 5 8 10
3
Please mention the folder in which I have to add the file. Thank you!