1. Low perfomance.
2. It changes the initial array. It's not good.

very clever solution, though a little problem. since there is no initial value been passed, the current index will start from 1 and never become 0.

good for explanatory mean, bad for perfomance.

Sorting all the numbers just to get the smallest...

haha did it the same way :)

Thank you, bro. This is really pretty new stuff.