Shauna_Wu的博客

问题描述：Suppose you have a long flowerbed in which some of the plots are planted and some are not. However, flowers cannot be planted in adjacent plots - they would compete for water and both would die...

leetcode 326. Power of Three（3的次方）

leetcode 263. Ugly Number丑数

leetcode 88. Merge Sorted Array合并有序数组

leetcode 70. Climbing Stairs爬梯子（DP问题）

leetcode 26. Remove Duplicates from Sorted Array从排序数组中移出重复元素(双指针)

leetcode 1. Two Sum两数和(HashMap)

leetcode447. Number of Boomerangs

leetcode 35. Search Insert Position搜索插入位置(二分查找)

leetcode 27. Remove Element移出元素(双指针)

leetcode 231. Power of Two（2的次方）

leetcode 437. Path Sum III(路径和)(DFS)

leetcode 191. Number of 1 Bits(1的个数)(C++和Java)(无符号位)

leetcode 791. Custom Sort String(排序字符串)

leetcode 172. Factorial Trailing Zeroes(阶乘尾后0个数)(因式分解)

leetcode 443. String Compression（字符串压缩）

leetcode 459. Repeated Substring Pattern(重复子字符串)

leetcode 235. Lowest Common Ancestor of a Binary Search Tree(二叉搜索树的最小公共祖先)

leetcode 438. Find All Anagrams in a String在字符串中寻找同构体(Sliding Window)

leetcode 257. Binary Tree Paths(DFS)

leetcode 101. Symmetric Tree对称树(递归和迭代)

leetcode 367. Valid Perfect Square有效的完全平方数

leetcode 53. Maximum Subarray(DP动态规划问题)

leetcode 695. Max Area of Island岛的最大面积(深度优先搜索)

leetcode 405. Convert a Number to Hexadecimal(十进制转十六进制>>>)

leetcode628.Maximum Product of Three Numbers三个数的最大乘积

leetcode 189. Rotate Array旋转数组

leetcode 7. Reverse Integer整数反转

leetcode 479. Largest Palindrome Product最大的回文乘积

leetcode 665. Non-decreasing Array非递减数组

题目描述： Given a string, find the first non-repeating character in it and return it’s index. If it doesn’t exist, return -1.

问题描述： Given an array of size n, find the majority element. The majority element is the element that appears more than ⌊ n/2 ⌋ times. You may assume that the array is non-empty and the majority elemen

Bit manipulation is the act of algorithmically manipulating bits or other pieces of data shorter than a word.

一、这是在leetcode上做的第一道题，算法思想非常简单，也第一次认真地学习了vector的基本内容

leetcode 401. Binary Watch二进制手表

leetcode 669. Trim a Binary Search Tree修剪二叉搜索树

leetcode 637. Average of Levels in Binary Tree二叉树的每层平均数

leetcode 107. Binary Tree Level Order Traversal II(BFS)(Java和C++)

leetcode 538. Convert BST to Greater Tree(反向中序遍历)

leetcode 415. Add Strings字符串加和(C++和Java)