How should I practice Stock Price Range over a Sliding Day Window?

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

Is Stock Price Range over a Sliding Day Window associated with Bloomberg LP?

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Stock Price Range over a Sliding Day Window

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Problem statement

Return maximum minus minimum among the most recent k prices in stockPrices. If k exceeds the number of prices, use the full history. Return -1 for empty input.

Function

stockPriceRange(stockPrices: int[], k: int) → int

Examples

Example 1

stockPrices = [4,1,8,2]k = 2return = 6

The latest prices are 8 and 2.

Constraints

k > 0.
At most 10^5 prices.