Please explain this

#1

I am not getting this question. Request you to please explain this.

#2

You have to divide the string into two parts such that the first part is the decreasing sequence and the second part is increasing sequence.

For example: if the input is: 3 2 1 1 2 3 then the answer is true since the array can be divided into two parts 3 2 1 and 1 2 3