Why are we going till n-2?

#1

in bubble sort why are we going till n-2; please explain

#2

hi @uditmudgal07_2f40cca755bd8bd2 as u are cheking in next line with j+1 that will be n-2+1 i.e n-1 which is the last index of array and u want to sort till last index only

#3

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