The tests cases don't test for this case but your solution wouldn't work if x was something like "5"

You shouldn't use if else, you can do it with array

Darn it, i didn't need the else! nice code

(m <= 0 || n <= 0) no?

I mean, the answer literally is in the desciption.

Where is your else block???

Need kind reply for understanding pleas: why '2' is multiplyed here?

Are you sure?

From https://medium.com/@michellekwong2/switch-vs-if-else-1d458e7b0711 :

A switch statement works much faster than an equivalent if-else ladder. It’s because the compiler generates a jump table for a switch during compilation. As a result, during execution, instead of checking which case is satisfied, it only decides which case has to be executed.

Switch is less optimized than if.

Nice!!!