2019-2020 ICPC Asia Hong Kong Regional Contest
C. Constructing Ranches 題意： 一棵樹上每個節點有權值\(a_i\)，問你有多少路徑滿足以下條件：路徑經過的每個點權作為邊長，可以構成一個多邊形。 解法： 三條邊能構成 ...
原文：2019-2020 ICPC Asia Hong Kong Regional Contest 部分題解
ICPC Asia Hong Kong Regional Contest 目錄 ICPC Asia Hong Kong Regional Contest A. Axis of Symmetry B. Binary Tree C. Constructing Ranches D. Defining Labels E. Erasing Numbers G. Game Design I. Incomin ...
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