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Filter System with Dynamic Blacklist

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Design a filter with processFilter / processInput / emit: emit a value when it appears in the input stream and is not currently blacklisted. Follow-up adds an updateFlag so filter edits re-emit state ...

SWE
oop-design
simulation
set
hashmap
data-structure
medium
Frequency
Single report
Last asked
2026-06-17
Stage
phone-screen

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