洛谷P3047
[USACO12FEB]Nearby Cows G 题解
题目链接:P3047
[USACO12FEB]Nearby Cows G
题意:
给你一棵 \(n\)
个点的树,点带权,对于每个节点求出距离它不超过 \(k\)
2022-06-08