English version is in beta. All contents of the site should be already translated (mostly using machine translation), and everything should work properly. However, if you find any problems, please contact me.
*Backtracking (recursive search)
This topic is quite complex, so if you don't understand it, you can skip it and return to it at level 6 (it will be mandatory there). However, recursive backtracking is a very useful technique, so try to master it now.
I've found some theory texts that will be useful for you, but the topic is indeed complex, and the theory presented below may not cover all the problems. Anyway, as always, think with your own head.
I've found some theory texts that will be useful for you, but the topic is indeed complex, and the theory presented below may not cover all the problems. Anyway, as always, think with your own head.
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