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AnswerRe: Find and count duplicates in a list Pin
OriginalGriff20-Aug-20 3:38
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Acuena24-Aug-20 4:16
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GeneralRe: Find and count duplicates in a list Pin
OriginalGriff24-Aug-20 4:24
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GeneralRe: Find and count duplicates in a list Pin
Acuena24-Aug-20 5:07
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GeneralRe: Find and count duplicates in a list Pin
OriginalGriff24-Aug-20 5:39
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GeneralRe: Find and count duplicates in a list Pin
Acuena25-Aug-20 4:13
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GeneralRe: Find and count duplicates in a list Pin
OriginalGriff25-Aug-20 4:43
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AnswerRe: Find and count duplicates in a list Pin
Afzaal Ahmad Zeeshan20-Aug-20 4:37
mvaAfzaal Ahmad Zeeshan20-Aug-20 4:37 
Quote:
I was thinking on using one loop to go threw the list, and then use the second loop to check for duplicates and count.
You are right, it is not just about finding/removing the duplicates, but also counting them.

For a custom solution, you can scan the list and create a Dictionary<string, int> that holds the times that a key occurs; check if the key exists, then increment the value, otherwise, add the key with 1 as value. The algorithm will run O(N) in a single go, and you can then traverse on the Dictionary while performing your actions—and this part depends on how you use the Dictionary and what purpose you make it serve. You will be using a single loop, and the front-end framework (ListView) would then be able to render the results itself; which will again be a loop.

You might as well want to use LINQ or other "shiny" C# features to perform this as well, C# LINQ find duplicates in List - Stack Overflow
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AnswerRe: Find and count duplicates in a list Pin
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