Matching duplicate values in an array

[Sascha_S]

@Peter_Stys

not sure how fast (or slow) the dictionary approach is,

A Dictionary uses a hash table, making the time (relatively) independent of the number of items. It is designed for high-speed lookups.

[TimStreater]

With a dictionary you don’t have to sor it, and you could use .HasKey to see if a key already exists or not.

[Peter_Stys]

good to know, maybe I should change my approach to use dicts then, thx all.