2019-2020 ICPC Asia Hong Kong Regional Contest
C. Constructing Ranches 题意： 一棵树上每个节点有权值\(a_i\)，问你有多少路径满足以下条件：路径经过的每个点权作为边长，可以构成一个多边形。 解法： 三条边能构成 ...
原文：ICPC 2019-2020 North-Western Russia Regional Contest
目录 Contest Info Solutions Problem A. Accurate Movement Problem B. Bad Treap Problem E. Equidistant Problem H. High Load Database Problem I. Ideal Pyramid Problem J. Just the Last Digit Problem K. Kin ...
2019-12-02 09:18 0 715 推荐指数：
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