Python
Java
PHP
IOS
Android
Nodejs
JavaScript
Html5
Windows
Ubuntu
Linux
CF1656E Equal Tree Sums题解
其实这道题不难 首先假设 1 1 1 是根节点 我看到这道题第一反应就是直接假设整棵树权值之和是某一个定值 xff0c 然后再dfs造每一个 a x
CF1656E
Equal
Tree
Sums
Sums of Sums
Alice presented her friend Bob with an array of N positive integers indexed from 1 to N She challenged Bob with many que
Sums