How should I practice Browser History by Frequency and Recency?

Start by reading the full statement, solve the visible examples, then compare the pattern against related Bloomberg LP phone screen problems in FastPrep.

Is Browser History by Frequency and Recency associated with Bloomberg LP?

FastPrep tags this as a Bloomberg LP phone screen coding practice problem when the problem catalog has that company and stage context.

Browser History by Frequency and Recency

Bloomberg LP● MediumNEW GRADPHONE SCREEN

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Problem statement

visits lists URLs from oldest to newest. Return each distinct URL once.

Pin the most recently visited URL first. Sort all remaining URLs by descending visit frequency, then descending most-recent visit index, then lexicographically.

Function

rankBrowserHistory(visits: String[]) → String[]

Examples

Example 1

visits = ["BBC","BBC","Google","facebook"]return = ["facebook","BBC","Google"]

facebook is newest and pinned; BBC then outranks Google by frequency.

Constraints

0 <= visits.length <= 10^5.