I have an array a. a[Math.Abs(a[i])-1] = -a[Math.Abs(a[i])-1]. What it is doing??

Question

please help trying to understand something

Answer 1

it depends in the value of the variable 'i' and the values in 'a'.

Answer 2

convert a positive integer to negative thanx

Answer 3

lets say a= {2,3,4}
and value of i is 0

Answer 4

my question is it assigning the value but it is calculating it as well not getting exactly what is happening

Answer 5

Here is the code and some explanation:

https://code.sololearn.com/WUpYUUDOa26G/?ref=app