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Problem Description A circumscribed circlecircumscribed circle of a polygon is the circle that passes through all the vertices ... 阅读全文
posted @ 2022-09-20 22:51
老程序员111
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Problem Description Notice that you need to read the statement of "D. Robots Easy" in order to understand this problem. Also... 阅读全文
posted @ 2022-09-20 22:51
老程序员111
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Problem Description Alice was playing her favorite game, "Tales of the Abyss", while playing she encountered the following puzz... 阅读全文
posted @ 2022-09-20 22:51
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Problem Description Matryoshka Dolls are Russia's most popular souvenirs. They are sets of wooden figurines of decreasing size ... 阅读全文
posted @ 2022-09-20 22:51
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Problem Description A prime number is a natural number greater than 1 and has exactly 2 divisors which are 1 and the number its... 阅读全文
posted @ 2022-09-20 22:51
老程序员111
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Problem Description Once upon a time, Hamza was hungry, only leftover food could be found in the fridge, so he wanted to order ... 阅读全文
posted @ 2022-09-20 22:51
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Problem Description Eva is fond of collecting coins. Whenever she visits a different country, she always picks up as many local... 阅读全文
posted @ 2022-09-20 22:51
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Problem Description The use of the triangle in the New Age practices seems to be very important as it represents the unholy tri... 阅读全文
posted @ 2022-09-20 22:51
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【概述】 求解费用流的方法很多，目前最流行的是 MCMF 费用流，其实质是将 EK 算法中的 bfs 换为了 SPFA 来计算最小费用，但其存在的一个缺点是 EK 是单路增广的，这样速度会相应的慢一些 然后 zkw 神犇进行了改进，在 dfs 的时候实现多路增... 阅读全文
posted @ 2022-09-20 22:51
老程序员111
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【概述】 给出一个由 n 个点和 m 条边构成的简单无向加权图，有时需要对生成树计数或对最小生成树计数。 当对生成树计数时，利用基尔霍夫矩阵的 Matrix-Tree 定理即可解决，而对最小生成树计数时，根据数据范围的不同，所采用的方法也不同。 关于基尔霍夫矩... 阅读全文
posted @ 2022-09-20 22:51
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