How do I approach Coding & Algorithms interview questions?

Coding & Algorithms questions require understanding of core concepts and practice. PracHub provides solutions with explanations to help you master coding & algorithms interviews.

What difficulty level is this interview question?

This is a Medium difficulty Coding & Algorithms question, commonly asked during Technical Screen rounds at Squarepoint Capital.

What role is this question designed for?

This question is commonly asked for Data Scientist candidates at Squarepoint Capital during technical interviews.

Compute drawdown, profit, and coin change

Last updated: Mar 29, 2026

Quick Overview

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.

Squarepoint Capital

Aug 4, 2025, 10:55 AM

Data Scientist

Technical Screen

Coding & Algorithms

Question

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/

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