Discussion @ 1554. Multiplicative Functions @ Timus Online Judge

Dumpty Humpty What do I need to do for notinvertible functions? [2] // Problem 1554. Multiplicative Functions 19 Jun 2011 03:03

For example:
1
9

Spatarel Dan Constantin Re: What do I need to do for notinvertible functions? [1] // Problem 1554. Multiplicative Functions 19 Apr 2014 18:06

My AC solution outputs 0.

Apparently, the problem statement is incomplete. It should guarantee that for the given tests a solution always exists.

Semm Re: What do I need to do for notinvertible functions? // Problem 1554. Multiplicative Functions 28 Jul 2016 14:49

It is told that F is a multiplicative function. So F(1)=1 by definition.

Discussion of Problem 1554. Multiplicative Functions