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原创 【题解】C. Manipulating History | Codeforces Round #796 (Div. 2)
C. Manipulating History c++题解
2022-06-05 20:31:59
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原创 Pole Arrangement 递归(dp)题解
There are poles of height 1, 2, . . . , n in a row. If you look at these poles from the left side or the right side, smaller poles are hidden by taller poles. For example, consider the two arrangements of 4 poles in the next figure: For each arrangement, o
2022-04-23 19:33:07
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