[luogu p2282] combinatorial number problem

Portal Combinatorial number problem Title Description The combination number \ (\ binom {n} {m} \) represents the number of schemes for selecting \ (m \) items from \ (n \) items. For example, selecting two items from three items of \ ((1,2,3) \) can have three selection methods of \ ((1,2), (1,3), (2,3) \). According to the definition of combi ...

Posted by ekosoftco on Sat, 14 May 2022 04:57:33 +0300