Question 4 what datatype should return

#1

here the bool data type is return by the comparator but what is item1 before item 2 ?

#2

@Vikaspal,
In q4, bool and 1, is the answer because return type of comp function is bool and for ascending values, item 1 should be less than item 2, (assuming that item1 occurs before item2) this is why item1 < item2 returns true.

#3

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