刷Leet 5个月了，先总结一下，这里算是每题的快速通道。自己做个记录便于以后重温算法。如果能帮到别人就更好了。
本人是算法新手，如果对于一些题目读者有更好的实现方法，如能不吝赐教，万分感谢。
【DFS】
Word Search -- http://blog.csdn.net/lan_liang/article/details/50144427
Sum Root to Leaf Numbers -- http://blog.csdn.net/lan_liang/article/details/49885323
Serialize and Deserialize Binary Tree -- http://blog.csdn.net/lan_liang/article/details/49869885
Binary Tree Paths -- http://blog.csdn.net/lan_liang/article/details/49869807
Number of Islands -- http://blog.csdn.net/lan_liang/article/details/49704101
Same Tree -- http://blog.csdn.net/lan_liang/article/details/49531135
Expression Add Operators -- http://blog.csdn.net/lan_liang/article/details/49520109
Path Sum -- http://blog.csdn.net/lan_liang/article/details/49108383
WordBreak II -- http://blog.csdn.net/lan_liang/article/details/48158163
Generate Parentheses -- http://blog.csdn.net/lan_liang/article/details/48028245
Path Sum II -- http://blog.csdn.net/lan_liang/article/details/47424491
【BFS】
Word Ladder -- http://blog.csdn.net/lan_liang/article/details/50144399
求树的最小深度 -- http://blog.csdn.net/lan_liang/article/details/50101103
Binary Tree Level Order Traversal II -- http://blog.csdn.net/lan_liang/article/details/50100453
Surrounded Regions -- http://blog.csdn.net/lan_liang/article/details/49885375
Remove Invalid Parentheses -- http://blog.csdn.net/lan_liang/article/details/49770495
Course Schedule II -- http://blog.csdn.net/lan_liang/article/details/48650023
二叉树逐层遍历 -- http://blog.csdn.net/lan_liang/article/details/48650013
Perfect Squares -- http://blog.csdn.net/lan_liang/article/details/48576005
Binary Tree Zigzag Level Order Traversal -- http://blog.csdn.net/lan_liang/article/details/48379651
Binary Tree Right Side View -- http://blog.csdn.net/lan_liang/article/details/48575915
【Dynamic Programming】
Word Break -- http://blog.csdn.net/lan_liang/article/details/50144951
最长回文串 -- http://blog.csdn.net/lan_liang/article/details/50144631
Unique Paths II -- http://blog.csdn.net/lan_liang/article/details/50125557
Minimum Path Sum -- http://blog.csdn.net/lan_liang/article/details/50125389
Maximum Subarray -- http://blog.csdn.net/lan_liang/article/details/50101095
Longest Increasing Subsequence -- http://blog.csdn.net/lan_liang/article/details/49869869
House Robber II -- http://blog.csdn.net/lan_liang/article/details/49520265
Edit Distance -- http://blog.csdn.net/lan_liang/article/details/49027951
Unique Paths -- http://blog.csdn.net/lan_liang/article/details/48897081
Maximal Square -- http://blog.csdn.net/lan_liang/article/details/48897063
Distinct Subsequences -- http://blog.csdn.net/lan_liang/article/details/48086757
Decode Ways -- http://blog.csdn.net/lan_liang/article/details/47660039
House Robber -- http://blog.csdn.net/lan_liang/article/details/47056295
Unique BST -- http://blog.csdn.net/lan_liang/article/details/47020365
最大连续乘积子序列 -- http://blog.csdn.net/lan_liang/article/details/47019711
【字符串】
ZigZag Conversion -- http://blog.csdn.net/lan_liang/article/details/50144495
Valid Palindrome -- http://blog.csdn.net/lan_liang/article/details/50125569
String to Integer (atoi) -- http://blog.csdn.net/lan_liang/article/details/50125465
Multiply Strings -- http://blog.csdn.net/lan_liang/article/details/50125395
Length of last word -- http://blog.csdn.net/lan_liang/article/details/49531069
Implement strStr() -- http://blog.csdn.net/lan_liang/article/details/48422333
最长公共前缀-- http://blog.csdn.net/lan_liang/article/details/47056413
单词反转-- http://blog.csdn.net/lan_liang/article/details/47019509
【哈希表】
Two Sum -- http://blog.csdn.net/lan_liang/article/details/50144879
Word Pattern -- http://blog.csdn.net/lan_liang/article/details/50144421
Valid Anagram -- http://blog.csdn.net/lan_liang/article/details/50125561
Group Anagrams -- http://blog.csdn.net/lan_liang/article/details/50100561
LRU Cache -- http://blog.csdn.net/lan_liang/article/details/49962311
Contains Duplicate II -- http://blog.csdn.net/lan_liang/article/details/49962279
Single Number III -- http://blog.csdn.net/lan_liang/article/details/49869913
Bulls and Cows -- http://blog.csdn.net/lan_liang/article/details/49869827
Single Number II -- http://blog.csdn.net/lan_liang/article/details/49770815
Repeated DNA Sequences -- http://blog.csdn.net/lan_liang/article/details/49704105
Minimum Window Substring -- http://blog.csdn.net/lan_liang/article/details/49620651
Majority Element II -- http://blog.csdn.net/lan_liang/article/details/49531073
Contains Duplicate -- http://blog.csdn.net/lan_liang/article/details/49108355
Single Number -- http://blog.csdn.net/lan_liang/article/details/49028097
Majority Element -- http://blog.csdn.net/lan_liang/article/details/48897025
Longest Substring Without Repeating Characters -- http://blog.csdn.net/lan_liang/article/details/48422051
Substring with Concatenation of All Words -- http://blog.csdn.net/lan_liang/article/details/47660233
Isomorphic Strings -- http://blog.csdn.net/lan_liang/article/details/48226703
【树】
最大权值路径 -- http://blog.csdn.net/lan_liang/article/details/50144507
二叉搜索树中查找最小公共祖先 -- http://blog.csdn.net/lan_liang/article/details/50145263
Symmetric Tree -- http://blog.csdn.net/lan_liang/article/details/50125501
后序遍历 -- http://blog.csdn.net/lan_liang/article/details/49620611
Invert Binary Tree -- http://blog.csdn.net/lan_liang/article/details/49520283
Binary Search Tree Iterator -- http://blog.csdn.net/lan_liang/article/details/49519959
先序遍历 -- http://blog.csdn.net/lan_liang/article/details/49188153
Validate Binary Search Tree -- http://blog.csdn.net/lan_liang/article/details/49188109
Kth Smallest Element in a BST -- http://blog.csdn.net/lan_liang/article/details/48897017
Trie(前缀树) -- http://blog.csdn.net/lan_liang/article/details/48897013
Construct Binary Tree from Inorder and Postorder Traversal -- http://blog.csdn.net/lan_liang/article/details/48896981
中序遍历 -- http://blog.csdn.net/lan_liang/article/details/48575897
判断平衡树-- http://blog.csdn.net/lan_liang/article/details/48227095
完全树节点个数统计 -- http://blog.csdn.net/lan_liang/article/details/48211899
Flatten一个二叉树将节点存链表 -- http://blog.csdn.net/lan_liang/article/details/47420913
【图】
复制图 -- http://blog.csdn.net/lan_liang/article/details/50100483
Course Schedule -- http://blog.csdn.net/lan_liang/article/details/49620627
【栈】
Valid Parentheses -- http://blog.csdn.net/lan_liang/article/details/50125625
Min Stack -- http://blog.csdn.net/lan_liang/article/details/49962363
Basic Calculator II -- http://blog.csdn.net/lan_liang/article/details/49962137
逆波兰表达式 -- http://blog.csdn.net/lan_liang/article/details/49188215
Simplify Path -- http://blog.csdn.net/lan_liang/article/details/49028045
Longest Valid Parentheses -- http://blog.csdn.net/lan_liang/article/details/48731261
简单的计算器 -- http://blog.csdn.net/lan_liang/article/details/48649985
Implement Queue using Stacks -- http://blog.csdn.net/lan_liang/article/details/48379771
【堆】
Kth Largest Element in an Array -- http://blog.csdn.net/lan_liang/article/details/50100585
Permutations II -- http://blog.csdn.net/lan_liang/article/details/50125415
【Two Pointer】
Move zero -- http://blog.csdn.net/lan_liang/article/details/50144743
Trap Water Rain -- http://blog.csdn.net/lan_liang/article/details/50125521
Remove Duplicates From Sorted Array 2 -- http://blog.csdn.net/lan_liang/article/details/50125437
4Sum -- http://blog.csdn.net/lan_liang/article/details/50100439
3Sum Closest -- http://blog.csdn.net/lan_liang/article/details/50100423
Minimum Size Subarray Sum -- http://blog.csdn.net/lan_liang/article/details/49962379
Container With Most Water -- http://blog.csdn.net/lan_liang/article/details/49770209
Summary Ranges -- http://blog.csdn.net/lan_liang/article/details/48897071
三色旗问题 -- http://blog.csdn.net/lan_liang/article/details/48650121
Remove Duplicates from Sorted Array -- http://blog.csdn.net/lan_liang/article/details/47865551
3 Sum -- http://blog.csdn.net/lan_liang/article/details/47258159
【快慢指针】
Find the Duplicate Number -- http://blog.csdn.net/lan_liang/article/details/50100527
Reorder List -- http://blog.csdn.net/lan_liang/article/details/49962425
Linked List Cycle II -- http://blog.csdn.net/lan_liang/article/details/49962291
Linked List cycle -- http://blog.csdn.net/lan_liang/article/details/49947067
判断链表是否有环 -- http://blog.csdn.net/lan_liang/article/details/47027249
【链表操作】
反转链表 -- http://blog.csdn.net/lan_liang/article/details/50144827
Rotate List -- http://blog.csdn.net/lan_liang/article/details/49704129
Remove Duplicates from Sorted List II -- http://blog.csdn.net/lan_liang/article/details/49620659
找到链表交点（如果相交） -- http://blog.csdn.net/lan_liang/article/details/49620635
Reverse Nodes in k-Group -- http://blog.csdn.net/lan_liang/article/details/49511523
Insertion Sort List -- http://blog.csdn.net/lan_liang/article/details/49108365
Add Two Numbers -- http://blog.csdn.net/lan_liang/article/details/49108345
Palindrome Linked List -- http://blog.csdn.net/lan_liang/article/details/49028011
Reverse Linked List -- http://blog.csdn.net/lan_liang/article/details/48576059
Remove Nth Node From End of List -- http://blog.csdn.net/lan_liang/article/details/48576041
Remove Duplicates from Sorted List -- http://blog.csdn.net/lan_liang/article/details/48576027
合并有序链表-- http://blog.csdn.net/lan_liang/article/details/48261603
删除值为k的节点 -- http://blog.csdn.net/lan_liang/article/details/47016795
【回溯】
求子集 -- http://blog.csdn.net/lan_liang/article/details/50125477
Combinations -- http://blog.csdn.net/lan_liang/article/details/50100509
Subsets II -- http://blog.csdn.net/lan_liang/article/details/49869927
Combination Sum III -- http://blog.csdn.net/lan_liang/article/details/49519983
Palindrome Partitioning -- http://blog.csdn.net/lan_liang/article/details/49188359
Letter Combinations of a Phone Number -- http://blog.csdn.net/lan_liang/article/details/49108367
Combination Sum -- http://blog.csdn.net/lan_liang/article/details/49108349
Combination Sum II -- http://blog.csdn.net/lan_liang/article/details/49027925
全排列（此处用回溯，在Permutation II题目中用的是HeapPerm算法） -- http://blog.csdn.net/lan_liang/article/details/48731289
Combination Sum -- http://blog.csdn.net/lan_liang/article/details/47906861
【数组操作】
merge sorted array -- http://blog.csdn.net/lan_liang/article/details/50144697
Rotate Array -- http://blog.csdn.net/lan_liang/article/details/50125457
Product of Array Except Self -- http://blog.csdn.net/lan_liang/article/details/50125427
Remove Element -- http://blog.csdn.net/lan_liang/article/details/49531123
Longest Consecutive Sequence -- http://blog.csdn.net/lan_liang/article/details/49027995
Insert Interval（区间操作） -- http://blog.csdn.net/lan_liang/article/details/48731239
Compare Version Numbers -- http://blog.csdn.net/lan_liang/article/details/48379733
Contains Duplicate III -- http://blog.csdn.net/lan_liang/article/details/47906693
合并区间数组 -- http://blog.csdn.net/lan_liang/article/details/47257907
【桶排序】
Maximum Gap -- http://blog.csdn.net/lan_liang/article/details/50100599
【贪心法】
Candy -- http://blog.csdn.net/lan_liang/article/details/47978745
【滑动窗口】
Sliding Window Maximum -- http://blog.csdn.net/lan_liang/article/details/49771149
【二分查找】
Search Insert Position -- http://blog.csdn.net/lan_liang/article/details/49704131
Search in Rotated Sorted Array -- http://blog.csdn.net/lan_liang/article/details/49531323
Search in Rotated Sorted Array II -- http://blog.csdn.net/lan_liang/article/details/49531155
First Bad Version -- http://blog.csdn.net/lan_liang/article/details/49520205
Find Peak Element -- http://blog.csdn.net/lan_liang/article/details/49055175
Search for a Range -- http://blog.csdn.net/lan_liang/article/details/49028029
Find Minimum in Rotated Sorted Array -- http://blog.csdn.net/lan_liang/article/details/49027977
Search Matrix -- http://blog.csdn.net/lan_liang/article/details/48650073
【分治】
Unique Binary Search Trees II -- http://blog.csdn.net/lan_liang/article/details/50125543
Convert Sorted Array to Binary Search Tree -- http://blog.csdn.net/lan_liang/article/details/49188195
Convert SortedList To BST -- http://blog.csdn.net/lan_liang/article/details/48731215
Different Ways to Add Parentheses -- http://blog.csdn.net/lan_liang/article/details/48575941
找最小公共祖先-- http://blog.csdn.net/lan_liang/article/details/47421007
【bit 操作】
Reverse Bits -- http://blog.csdn.net/lan_liang/article/details/50125453
Number of 1 Bits -- http://blog.csdn.net/lan_liang/article/details/49962407
Bitwise AND of Numbers Range --http://blog.csdn.net/lan_liang/article/details/49962271
【其他趣题】
H index -- http://blog.csdn.net/lan_liang/article/details/50145121
H-Index II -- http://blog.csdn.net/lan_liang/article/details/49869849
Implement int sqrt(int x) -- http://blog.csdn.net/lan_liang/article/details/50144615
Excel Sheet Column Title -- http://blog.csdn.net/lan_liang/article/details/50144599
Valid Sudoku -- http://blog.csdn.net/lan_liang/article/details/50144377
First Missing Positive -- http://blog.csdn.net/lan_liang/article/details/50144341
Search a 2D Matrix II -- http://blog.csdn.net/lan_liang/article/details/49962513
Ugly Number -- http://blog.csdn.net/lan_liang/article/details/49885485
Ugly Number II -- http://blog.csdn.net/lan_liang/article/details/49885465
Integer to English Words -- http://blog.csdn.net/lan_liang/article/details/49885299
Game of Life -- http://blog.csdn.net/lan_liang/article/details/49869841
Set Matrix Zeroes -- http://blog.csdn.net/lan_liang/article/details/49770661
Roman to Integer -- http://blog.csdn.net/lan_liang/article/details/49704123
Permutation Sequence -- http://blog.csdn.net/lan_liang/article/details/49531109
Pascal‘s Triangle II -- http://blog.csdn.net/lan_liang/article/details/49531099
Nim Game -- http://blog.csdn.net/lan_liang/article/details/49531079
Largest Number -- http://blog.csdn.net/lan_liang/article/details/49520305
Rectangle Area -- http://blog.csdn.net/lan_liang/article/details/49188467
Pow(x, n) -- http://blog.csdn.net/lan_liang/article/details/49188419
Jump Game -- http://blog.csdn.net/lan_liang/article/details/49188297
Climbing Stairs -- http://blog.csdn.net/lan_liang/article/details/49188175
Best Time to Buy and Sell Stock -- http://blog.csdn.net/lan_liang/article/details/49188129
Spiral Matrix II -- http://blog.csdn.net/lan_liang/article/details/49108417
Happy Number -- http://blog.csdn.net/lan_liang/article/details/49108359
Missing Number -- http://blog.csdn.net/lan_liang/article/details/49028001
Max Points on a Line -- http://blog.csdn.net/lan_liang/article/details/48897059
Gas Station -- http://blog.csdn.net/lan_liang/article/details/48897005
Factorial Trailing Zeroes -- http://blog.csdn.net/lan_liang/article/details/48896997
Next Permutation -- http://blog.csdn.net/lan_liang/article/details/48650053
Reverse Integer -- http://blog.csdn.net/lan_liang/article/details/48576053
Fraction to Recurring Decimal -- http://blog.csdn.net/lan_liang/article/details/48575985
Count Digit One -- http://blog.csdn.net/lan_liang/article/details/48575923
Excel Sheet Column Number -- http://blog.csdn.net/lan_liang/article/details/48575959
Add Digit -- http://blog.csdn.net/lan_liang/article/details/48422443
SpiralOrder -- http://blog.csdn.net/lan_liang/article/details/48156797
Best Time to Buy and Sell Stock II -- http://blog.csdn.net/lan_liang/article/details/47906575
帕斯卡三角形 -- http://blog.csdn.net/lan_liang/article/details/47257859
旋转图片 -- http://blog.csdn.net/lan_liang/article/details/47424119
Plus One -- http://blog.csdn.net/lan_liang/article/details/47979589
格雷码 -- http://blog.csdn.net/lan_liang/article/details/47019363
Count And Say -- http://blog.csdn.net/lan_liang/article/details/47016965