LeetCode刷题记录 传送门 Description An undirected, connected treewith N nodes labelled 0...N-1 and N-1 edges are given. The ith edge connects nodes ...
An undirected, connectedtree with N nodes labelled ...N and N edges aregiven. Theith edge connects nodesedges i andedges i together. Return a listans, whereans i is the sum of the distances between n ...
2019-09-14 23:46 0 1357 推荐指数:
LeetCode刷题记录 传送门 Description An undirected, connected treewith N nodes labelled 0...N-1 and N-1 edges are given. The ith edge connects nodes ...
Given a Binary Search Tree and a target number, return true if there exist two elements in the BST such that their sum is equal to the given ...
which gives the sum of target. Note: Elements ...
Implement a MapSum class with insert, and sum methods. For the method insert, you'll be given a pair of (string, integer). The string ...
Find all possible combinations of k numbers that add up to a number n, given that only numbers ...
Given a set of candidate numbers (candidates) (without duplicates) and a target number (ta ...
Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum ...
Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum ...