题目来源:PAT (Advanced Level) Practice
In computer science, a heap is a specialized tree-based data structure that satisfies the heap property: if P is a parent node of C, then the key (the value) of P is either greater than or equal to (in a m…
题面 题意
t 组样例,每组 n 个点,每个点上有权值,然后n-1条边把点连起来构成图(题中说是树)有多种颜色可以给图中每条边染色( n-1条边最多染 n-1 种颜色),问染i种颜色,图…