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<https://blog.jetbrains.com/kotlin/2021/09/idiomatic-kotlin-traversing-trees/|Idiomatic Kotlin: Solving Advent of Code Puzzles, Traversing Trees>
Let’s describe our task briefly. We are airport luggage throwers handlers, and as often happens, there are some new regulations. This time, they stipulate that all bags be color-coded and contain a specific number of color-coded bags inside them. Weird, right? Well, rules are rules, so we must comply. Let’s see what they look like: […]