Remove Duplicate

[Vijay_Kumar10 (Vijay Kumar)]

Remove Duplicate
Input value: 225336675992
Need Output: 25367592

[ppr (Peter Preuss)]

@Vijay_Kumar10
welcome to the forum

we can do with regex.replace

[CheatSheet] - System.Text.RegularExpressions | RegEx

This CheatSheet introduces the basic use of regex functions. With further examples also special cases are presented. Introduction From the namespace System.Text.RegularExpressions following methods are offered: Regex.Match Regex.Matches Regex.isMatch Regex.Replace Regex.Split A simple usage for example would look like this: [grafik] Recommendation: add System.Text.RegularExpressions to the imports: [grafik] it allows to use the shortened statement, as the namespace part can be ommited…

[Vijay_Kumar10 (Vijay Kumar)]

Thank you for your reply on this, Could you please suggest anyother method to remove duplicates and get output value.

like LINQ method or For Each/If Condition. If anyone

[ppr (Peter Preuss)]

Updated for handling also more then 2 following same digits:

With Regex we can do it very compact compared e.g. LINQ or for each

A for each would run over all characters and will memorize the n-1 char
A same char in sequence is detected when n-1 char = n char

n - the current loop

[Vaibhav_Rajpoot_17 (Vaibhav Rajpoot)]

@Vijay_Kumar10

Try this,

Assign a variable : input String =“225336675992”
Enumerable.Distinct(input String)