Compute drawdown, profit, and coin change

Q: Compute drawdown, profit, and coin change

This question evaluates a candidate's ability to compute financial time-series metrics and apply algorithmic techniques such as array processing and optimization/dynamic programming to identify maximum drawdown and its indices.

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What is the maximum drawdown of a cumulative PnL (profit and loss) series, and when did it occur? Implement a function mdd(pnl) that returns the maximum drawdown (negative value) and its start and end indices. LeetCode 121. Best Time to Buy and Sell Stock LeetCode 322. Coin Change

https://leetcode.com/problems/best-time-to-buy-and-sell-stock/description/ https://leetcode.com/problems/coin-change/description/

Compute drawdown, profit, and coin change

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