SPOJ:Ada and Orange Tree (LCA+Bitset)
题目链接:https://vjudge.net/problem/SPOJ-ADAORANGAda the Ladybug lives near an orange tree. Instead of reading books, she investigates the oranges. The oranges on orange tree can be in up to 5*50 Shades o...
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2018-04-24 19:21:15 ·
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