Sooo.... I 've decided to compare the performance of Rust's and C#'s implementations of Russian declension, and, well... Everything is so explicit and safe in Rust, that I've spent several months learning Rust and figuring out the best way to implement all this.

I'm also addicted to Rust now.

I decided to make a grammar library in C#, for inflecting nouns, adjectives, pronouns and verbs. I thought I'd finish the project in a week or two, but the Russian language turned out to be so much more complicated than I ever imagined, even though it's my first language.

Traditionally, as you would learn from the textbooks, there are "only 3 declensions". But the thing is, that's the optimal number of declensions for humans to learn. As you dig deeper, and eliminate the "human intuition" factor, you end up with... approx. 4 558 657 distinct declensions. But, unfortunately, even that amount doesn't cover all the words...