sunshisonghit

摘要： Merge Intervals问题：Given a collection of intervals, merge all overlapping intervals.思路： 不排序 直接上根据交集的特性 排序后再判断 简单的数学推导我的代码1：public class Solution { ... 阅读全文

摘要： Unique Binary Search Trees II问题：Givenn, generate all structurally uniqueBST's(binary search trees) that store values 1...n.思路： dfs或者动态规划我的代码：public c... 阅读全文

摘要： Longest Common Prefix问题:Write a function to find the longest common prefix string amongst an array of strings.思路： 简单的string运算我的代码：public class Soluti... 阅读全文

摘要： Anagrams问题：Given an array of strings, return all groups of strings that are anagrams.Note: All inputs will be in lower-case.思路： Anagrams：排序后的String作为... 阅读全文

摘要： Letter Combinations of a Phone Number问题：iven a digit string, return all possible letter combinations that the number could represent.A mapping of digi... 阅读全文

摘要： Binary Tree Level Order Traversal问题： Given a binary tree, return thebottom-up level ordertraversal of its nodes' values. (ie, from left to right, lev... 阅读全文

摘要： Copy List with Random Pointer问题：A linked list is given such that each node contains an additional random pointer which could point to any node in the ... 阅读全文

摘要： Remove Duplicates from Sorted List II问题：Given a sorted linked list, delete all nodes that have duplicate numbers, leaving onlydistinctnumbers from the... 阅读全文

摘要： Min Stack问题：Design a stack that supports push, pop, top, and retrieving the minimum element in constant time.push(x) -- Push element x onto stack.pop(... 阅读全文