Can you explain advanced combination and permutation problems?
Sure! Advanced combination and permutation problems involve calculating the number of ways to arrange or select items from a set, often with specific conditions.
What’s the difference between combinations and permutations?
The main difference is that permutations consider the order of selection, while combinations do not. For example, ABC and ACB are different permutations but the same combination.
Can you give me an example of a complex problem?
Absolutely! Suppose you have 10 different books and you want to select 3 to read. How many different ways can you choose these books?
And how would I solve that?
You would use the combination formula: C(n, r) = n! / (r!(n-r)!), where n is the total items and r is the items to choose. So, C(10, 3) = 120.
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