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Combinations

Binomial Coefficient

The binomial coefficient, denoted as C[n][k] represents the number of ways to choose k elements from a set of n elements without regard to the order.

It is used in combinatorics to solve problems where you need to select subsets from larger sets.

C(n,k)=(nk)=n!k!(nk)!C(n, k) = \binom{n}{k} = \frac{n!}{k!(n - k)!}

Problems