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##Meet in the middle 俗称折半搜索,将 m^n复杂度可降成 m^(n/2) ###1.luoguP5691 [NOI2001] 方程的解数 朴素算法的复杂度为m^n m=150,n=6 稳稳地超时 but采用Meet in the middle 就可以将复杂度降成m^(n/2) 阅读全文
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2022/11/1 https://codeforces.com/blog/entry/106346 On "is this greedy or DP", forcing and rubber bands reading other people's thought processes They l 阅读全文