随笔分类 - 动态规划
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CF1787C - Remove the Bracket
摘要：https://codeforces.com/problemset/problem/1787/C This is the reason why the problem was named as Remove the Bracket. \begin{aligned} \text{Product} &=
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CF1741E - Sending a Sequence Over the Network
摘要：https://codeforces.com/contest/1741/problem/E Let's introduce the dynamics.
