ambar003's blog

By ambar003, history, 8 years ago, In English

501D - Миша и сложение перестановок i am solving this problem. i find rank of both permutation in factorial number system. now i need to find sum of these 2 ranks and then find the permutation related to this rank. i am not able to get logic how to find permutation related to this rank i.e. unranking of permutation. can anyone explain it?

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