What happens by [-2] in Array?

Panchal007 0
Viewed 22
n = int(input())
arr = list(set(map(int, input().split())))
arr.sort()
print(arr[-2])

I was expecting to get the 2nd highest number from a list . But I can't understand how the -2 works

types list python
2 Answers

A negative index counts backwards from the end of the list.

brunson0

You could use .sort(reverse=True) and than access the second highest number with num[2]. -1 is the far side (the end of the list), -2 is the second last.

Sy Ker0
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