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Discussion of Problem
1961
. Cantonese Dialect
Igor Parfenov
Solution is simple
// Problem
1961. Cantonese Dialect
20 Jun 2022 02:05
The solution is just a very little more difficult, that the first, which comes to mind.
I tried firstly to count these probabilities (those are C(M, m) * C(N-M, n-m) / C(N, n)), but seems, it is impossible with these constraints.
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