Today I'm going to present a very interesting problem I found while searching for new problems for my students. Here you can observe how I used combinatorics and bitwise operations to reduce what seemed to be a very complicated problem to a solution which is only a couple of lines long.
Problem: https://cses.fi/problemset/task/2419/
Solution Code: https://cses.fi/paste/60b25a5e317e62f19115bc/
My Algorithms Templates: https://github.com/stefdasca/CompetitiveProgramming/tree/master/Algorithms
My website: https://stefdasca.ro/
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