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I'd add cut off browsing news/reddit and scrolling social media. It also overload the brain with garbage.


Sometimes, it's a way to elegantly solve some problems. Imagine you have a binary tree and you need to find it's depth. The answer is the maximum depth of its left and right subtree plus one. This easily translates into a recursive code.

It's true that it's rarely used in production quality code, but nonetheless it's sometimes useful and you should have a good command of writing recursive code.


I'm more increasingly convinced that ceo are capitalizing on this occasion to lay off people they deem undesirable.


right, there's no way that tech companies laying off people means fewer seats sold for other software providers


Very nice! I really find it useful. Would you mind sharing the tech stack?


Thanks for sharing! will check it out later, but this looks great.


It's useful for the estimation part of system design.


This pretty standard interview question. You should keep track of the current minimum when you do a push: push 1: [(v=1,m=1)] push -1: [(v=1, m=1), (v=-1, m=-1)] push 3: [(v=1, m=1), (v=-1, m=-1), (v=3, m=-1)] get_min: [(v=1, m=1), (v=-1, m=-1), (v=3, m=-1)] returns m=-1 pop: [(v=1, m=1), (v=-1, m=-1)] returns v=3 get_min: returns -1


Came here to say this, as far as LC questions go, this one is pretty straight forward. OP, the way you come up with a solution like this is practice and more practice, the same way you can solve an equation you never seen before, because you have a set of tools (patterns, "tricks", knowledge, ...) that allows you to come up with a solution. Keep practicing and you will see the progress.


OP meant O(1) in time and space (forgot the space but it’s in the linked article). That solution is O(N) in space.


problem is when you pop the min, you can't know which was the second to min unless you do the trick that's in the website quoted.


You don't pop the min, you pop the top of the stack.


Yes. Of course. But what do you do when the top of the stack IS the min? Your new min should change, but you won't have the information to update to the second min unless you do the trick in the article.


Do you really think that metaverse will gain momentum?


What's the point of this? Will it make you rich?


it can be used to build better statistical modelling and computational tools that might, in the future, enable scientists and researchers to more efficiently or effectively figure out statistical or causal relationships -- and in some niche applications, e.g. in pharma or finance or insurance or advertising, that information might be valuable and help some people get rich. but the people able to capture the most value from those developments are unlikely to be the researchers or the people building the software tools.


I think this type of question is what make people go and work for the kind of Mark Zuckerbuerg.


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