Studies show that one of the most effective interviewing tools is a test for general mental ability: https://www.semanticscholar.org/paper/The-validity-and-utili... Now, IQ tests are of dubious legality, at least in the US, but algorithmic coding questions basically get you an IQ test crossed with a programming skill check: win-win. All the ire about how you don't actually invert binary trees or whatnot during your r…
Bingo! I like how all these arm-chair HNers who have never run a successful company or built a public-facing product used by millions suddenly are experts at how to build a successful company. Yeah, you know how Search serves 4 Billion people or people created Chrome or gmail in their 20% free time? Because they could leet code and not use Stack Overflow as a crutch. Sure, not all companies need leet code. But someon…
But suffice to say, I think algorithmic interviews are a decent filtering tool for recruitment, and I haven't heard of anything better (though some other methods may be comparable for overall utility, but just measure different things).