Codeforces. Programming competitions and contests, programming community

Codeforces. Programming competitions and contests, programming community

Please hold still while we locate your pointer...

The Useless Web Button... just press it and find where it takes you. The perfect button for the bored, or those looking to find useless sites online!

Can you solve this real interview question? Longest Nice Subarray - You are given an array nums consisting of positive integers.

We call a subarray of nums nice if the bitwise AND of every pair of elements that are in different positions in the subarray…

Stock options, RSUs, taxes — read the latest edition: www.holloway.com/ec - jlevy/og-equity-compensation

Master the command line, in one page. Contribute to jlevy/the-art-of-command-line development by creating an account on GitHub.

Can you solve this real interview question? Count the Number of Good Subarrays - Given an integer array nums and an integer k, return the number of good subarrays of nums.

A subarray arr is good if there are at least k pairs of indices (i, j) such that i…

There is a pattern I am very fond of - “one database per tenant” in web applications with multiple, isolated users. Recently, I needed to fix an application I had for a long time where this database-per-tenant multitenancy utterly broke down, because I was…

Presentation slides for developers

Researchers in “natural language processing” tried to tame human language. Then came the transformer.

A look at how and why we migrated from Next.js to Ruby on Rails.

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Update: DeleteMe emailed me about the video:…

create a copy of a webpage that will always be up

A research-backed AI scenario forecast.