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It's the combo (N,2) if there are 2 item then C(2,2) = 1 if 3 then C(3,2) .....
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Sherlock and Anagrams
You are viewing a single comment's thread. Return to all comments →
It's the combo (N,2) if there are 2 item then C(2,2) = 1 if 3 then C(3,2) .....