[Community Puzzle] Unique Prefixes

https://www.codingame.com/training/easy/unique-prefixes

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Created by @otpv,validated by @BigBart,@ItsAFeature and @Samsonov.
If you have any issues, feel free to ping them.

cannot pass the final validators7: the incremental options, I try to pass all the other testcases, I cannot pass the 7th validators may be the reson I still cannot figure out this case:
verbose
verb
verbose
verb
verbose

why it outputs
verbo
verb
verbo
verb
verbo

in my thought it should not be accepted because they existed the same words, and how can I tell if the testcases have the same words? I think it’s the reason I cannot pass it.

any suggestion for me?

Because “verbo” is enough to match “verbose”.

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I’m stuck at the same place as you. How did you solve it?

Found the issue - I wasn’t handling duplicates very well.

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This was excellent and straight forward to solve, Thank You!

this case my algo do well, as other in task, but submission fails 2,4,5 validators. any idea ?

You may send your code (with its language) in private, I might send back what’s wrong.