摘要： Sort Colors问题：Given an array withnobjects colored red, white or blue, sort them so that objects of the same color are adjacent, with the colors in the... 阅读全文

摘要： Remove Duplicates from Sorted List问题：Given a sorted linked list, delete all duplicates such that each element appear onlyonce.For example,Given1->1->2... 阅读全文

摘要： Find Peak Element问题：A peak element is an element that is greater than its neighbors.Given an input array wherenum[i] ≠ num[i+1], find a peak element a... 阅读全文

摘要： Unique Paths问题：A robot is located at the top-left corner of amxngrid (marked 'Start' in the diagram below).The robot can only move either down or righ... 阅读全文

摘要： Merge Two Sorted Lists问题：Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the ... 阅读全文

摘要： Convert Sorted Array to Binary Search Tree问题：Given an array where elements are sorted in ascending order, convert it to a height balanced BST.思路： 递归，... 阅读全文

摘要： Climbing Stairs问题：You are climbing a stair case. It takesnsteps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ... 阅读全文

摘要： Majority Element 问题： Given an array of size n, find the majority element. The majority element is the element that appears more than ⌊ n/2 ⌋ times. Yo 阅读全文

摘要： Single Number II 问题： Given an array of integers, every element appears three times except for one. Find that single one. Note:Your algorithm should ha 阅读全文

摘要： Integer to Roman 问题： Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 3999. 思路： 映射方法-->等长数组 我的代码： 阅读全文