原题链接在这里：https: leetcode.com problems connecting cities with minimum cost 题目： There areNcities numbered from toN. You are givenconnections, where eachconnections i city , city , cost represents the cos ...
2019-08-01 09:41 0 1252 推荐指数：
problem: https://leetcode.com/contest/biweekly-contest-5/problems/connecting-cities-with-minimum-cost/ 双周赛题目。此题就是没有什么变化的最小生成树，以下给出两种经典解法 ...
原题链接在这里：https://leetcode.com/problems/minimum-cost-to-connect-sticks/ 题目： You have some sticks with positive integer lengths. You can connect any ...
pile, and the cost of this move is equal to the tot ...
In a country popular for train travel, you have planned some train travelling one year in advance. ...
原题链接在这里：https://leetcode.com/problems/minimum-cost-tree-from-leaf-values/ 题目： Given an array arr of positive integers, consider all binary trees ...
Given a m x n grid. Each cell of the grid has a sign pointing to the next cell you should visit if y ...
链接：1135. Is It A Red-Black Tree (30) 红黑树的性质： (1) Every node is either red or black. (2) The root is black. (3) Every leaf (NULL) is black. ...
We have n chips, where the position of the ith chip is position[i]. We need to move all the chips ...
