Can any one give me idea how can we get duplicate in array without repeat duplicate ?

Question

Data structure

Answer 1

https://code.sololearn.com/cd22u78aAamg/?ref=app
https://code.sololearn.com/cV1Sbuet2EQA/?ref=app

Answer 2

You mean that you have array {1,2,3,5,3,6,5,7} and you want to get output is {3,5} ?

Answer 3

Abhay Sardhara Welcome
sneeze https://www.sololearn.com/learn/CSharp/3040/

Answer 4

No i want to return array this way [1 2 3 5 6 7]

Answer 5

What is a hashset ?

Answer 6

Thanks id001x

Answer 7

I think HashSet is similar to set() in python