Topic

Divide and conquer problems

Split the input in halves, solve each and combine the answers.

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The Math Behind the Padlock

Padlock-এর পেছনের অঙ্ক

Number theoryRecursionDivide and conquerMedium
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New problems come from every Progsity roundAfter a round, its problems join this library, credited to the round and to the person who set them.Set a problem for a roundWrite one, see it used in a Progsity round, and get the credit on its page here.