Strings and Arrays

Plenty of CrowdStrike coding questions have no security story at all. Senior rounds and SDET loops have both used plain string and array problems. They're short, so settle the edge rules before you type and then write one clean pass.

Ask about the input first. Whether an array arrives sorted can change the best cost, and an empty input can mean keep everything or keep nothing, so say which. Then name your test inputs before the interviewer does. CrowdStrike hires SDETs alongside backend engineers, and both kinds of panel like the habit. Start with the empty input and a single element, then add the largest count you expect. Four problems follow. They're quick to code, so spend the spare minutes on tests.

CrowdStrikePremium lesson · Coding round

The 4 CrowdStrike problems are below.

1. 1A Premium questionCoding · Medium · Frequently asked
2. 2A Premium questionCoding · Medium
3. 3A Premium questionCoding · Easy

+ 1 more in this lesson

Each with hints, the follow-up and a tested solution.

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