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E. George and Cards(贪心, 树状数组+set维护, 好题!)
George is a cat, so he loves playing very much. Vitaly … 阅读更多
Codeforces Round #290 (Div. 2) D. Fox And Jumping GCD问题
Note In first sample test, buying one card is not enoug … 阅读更多
George is a cat, so he loves playing very much. Vitaly … 阅读更多
Note In first sample test, buying one card is not enoug … 阅读更多