Algorithms in the Real World: Host Matching
anishathalye.com
anishathalye.com
I wish there were a collection of such things, where data-structures and algorithms are used in real life (or even at places where it's not visible in everyday life, like inside the Operating Systems).
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At school, people sometimes complain about the seemingly esoteric stuff we learn in algorithms classes, and it would be great for people to see real-life examples where algorithms knowledge is necessary.