Ceva destul de evident intuitiv

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Beniamin Bogosel
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Ceva destul de evident intuitiv

Post by Beniamin Bogosel »

Demonstrati ca orice poliedru colorat initial in alb poate fi vopsit in negru, colorand pe rand cate o faţă a sa astfel incat regiunile albe si negre sa ramâna conexe.

Doua feţe sunt in aceeasi componenta conexa daca au o muchie comuna.
Yesterday is history,
Tomorow is a mistery,
But today is a gift.
That's why it's called present. :)

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