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

please help trying to understand something

5 Answers

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

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convert a positive integer to negative thanx

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

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

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Here is the code and some explanation:
https://code.sololearn.com/WUpYUUDOa26G/?ref=app