截止至今LeetCode题目总量已经有1582题，估计将来每年平均增长300题左右，大部分人肯定是刷不完的，所以得有选择地刷LeetCode。
一种公认的刷题策略是按类别刷题，可是每个类别也有许多题，在有限的时间里到底该刷哪些题呢？个人根据LeetCode官方给出的每个题目的出现频率，整理并收录了每个类别里高频出现的题目，对于官方统计频率太低的题目，不予收录，最终得到了这个高频题目表格。
例如，对于下图中题号#275与#270的题目将被收录，并且#275出现频率大于#270；而对于题号#1011与#1182的题目，因为出现频率太低，将不被收录：
撸起键盘加油干！祝大家成功上岸！整理不易，点个赞吧！
其他杂项篇(Miscellaneous)
数据日期： 2020/03/26 (此时LeetCode题目数量：1582)
数据来源： LeetCode官方，将不同类别的题目按照官方给的出现频率(Frequency)降序排列，取有频率统计的题。
说明：
本篇比较特殊，是由多个类别的题目组合而成，之所以这么做是因为这些类别下题目数实在太少，因此就放到了一起。
并查集(Union Find)
排序 | 题号 | 题目 | 通过率 | 难度 | 1#128Longest Consecutive Sequence0.483困难2#399Evaluate Division0.537中等3#200Number of Islands0.478中等4#130Surrounded Regions0.398中等5#684Redundant Connection0.571中等6#547Friend Circles0.557中等7#721Accounts Merge0.323中等8#685Redundant Connection II0.335困难9#305Number of Islands II0.315困难10#323Number of Connected Components in an Undirected Graph0.553中等11#261Graph Valid Tree0.449中等12#737Sentence Similarity II0.41中等分治法(Divide and Conquer)
排序 | 题号 | 题目 | 通过率 | 难度 | 1#4Median of Two Sorted Arrays0.372困难2#53Maximum Subarray0.499简单3#23Merge k Sorted Lists0.496困难4#312Burst Balloons0.584困难5#169Majority Element0.628简单6#218The Skyline Problem0.414困难7#241Different Ways to Add Parentheses0.708中等8#215Kth Largest Element in an Array0.618中等9#315Count of Smaller Numbers After Self0.372困难10#327Count of Range Sum0.329困难11#282Expression Add Operators0.331困难12#493Reverse Pairs0.235困难13#514Freedom Trail0.38困难14#240Search a 2D Matrix II0.396中等滑动窗口(Sliding Window)
排序 | 题号 | 题目 | 通过率 | 难度 | 1#3Longest Substring Without Repeating Characters0.335中等2#76Minimum Window Substring0.355困难3#424Longest Repeating Character Replacement0.461中等4#239Sliding Window Maximum0.451困难5#480Sliding Window Median0.338困难6#567Permutation in String0.346中等7#159Longest Substring with At Most Two Distinct Characters0.51中等8#727Minimum Window Subsequence0.398困难9#340Longest Substring with At Most K Distinct Characters0.464困难递归(Recursion)
排序 | 题号 | 题目 | 通过率 | 难度 | 1#698Partition to K Equal Sum Subsets0.41中等2#687Longest Univalue Path0.394简单3#726Number of Atoms0.437困难4#248Strobogrammatic Number III0.413困难5#247Strobogrammatic Number II0.478中等6#544Output Contest Matches0.665中等7#625Minimum Factorization0.323中等字典树(Trie)
排序 | 题号 | 题目 | 通过率 | 难度 | 1#421Maximum XOR of Two Numbers in an Array0.591中等2#208Implement Trie (Prefix Tree)0.656中等3#��������,��������336Palindrome Pairs0.331困难4#677Map Sum Pairs0.608中等5#212Word Search II0.397困难6#720Longest Word in Dictionary0.461简单7#211Add and Search Word - Data structure design0.434中等8#648Replace Words0.536中等9#676Implement Magic Dictionary0.565中等10#692Top K Frequent Words0.497中等线段树(Segment Tree)
排序 | 题号 | 题目 | 通过率 | 难度 | 1#218The Skyline Problem0.414困难2#315Count of Smaller Numbers After Self0.372困难3#327Count of Range Sum0.329困难4#493Reverse Pairs0.235困难5#732My Calendar III0.572困难6#307Range Sum Query - Mutable0.543中等7#699Falling Squares0.399困难8#715Range Module0.331困难9#308Range Sum Query 2D - Mutable0.555困难Ordered Map(Ordered Map)
这个不懂怎么翻译，似乎就是带排序的map，类似于C++的map。
排序 | 题号 | 题目 | 通过率 | 难度 | 1#352Data Stream as Disjoint Intervals0.526困难2#732My Calendar III0.572困难3#220Contains Duplicate III0.259中等4#731My Calendar II0.449中等5#699Falling Squares0.399困难6#715Range Module0.331困难7#683K Empty Slots0.368困难队列(Queue)
排序 | 题号 | 题目 | 通过率 | 难度 | 1#621Task Scheduler0.481中等2#363Max Sum of Rectangle No Larger Than K0.348困难3#346Moving Average from Data Stream0.688简单4#353Design Snake Game0.391中等5#582Kill Process0.346中等几何(Geometry)
排序 | 题号 | 题目 | 通过率 | 难度 | 1#587Erect the Fence0.302困难极小化极大算法(Minimax)
排序 | 题号 | 题目 | 通过率 | 难度 | 1#292Nim Game0.696简单2#375Guess Number Higher or Lower II0.372中等3#464Can I Win0.333中等4#486Predict the Winner0.508中等5#294Flip Game II0.569中等二叉索引树(Binary Indexed Tree)
排序 | 题号 | 题目 | 通过率 | 难度 | 1#218The Skyline Problem0.414困难2#315Count of Smaller Numbers After Self0.372困难3#327Count of Range Sum0.329困难4#493Reverse Pairs0.235困难5#307Range Sum Query - Mutable0.543中等6#308Range Sum Query 2D - Mutable0.555困难扫描线算法(Line Sweep)
排序 | 题号 | 题目 | 通过率 | 难度 | 1#218The Skyline Problem0.414困难2#391Perfect Rectangle0.254困难拓扑排序算法(Topological Sort)
排序 | 题号 | 题目 | 通过率 | 难度 | 1#207Course Schedule0.496中等2#329Longest Increasing Path in a Matrix0.401困难3#210Course Schedule II0.465中等4#269Alien Dictionary0.381困难5#444Sequence Reconstruction0.23中等6#1203Sort Items by Groups Respecting Dependencies0.369困难脑筋急转弯(Brainteaser)
排序 | 题号 | 题目 | 通过率 | 难度 | 1#292Nim Game0.696简单2#319Bulb Switcher0.452中等记忆化(Memoization)
排序 | 题号 | 题目 | 通过率 | 难度 | 1#329Longest Increasing Path in a Matrix0.401困难蓄水池抽样(Reservoir Sampling)
排序 | 题号 | 题目 | 通过率 | 难度 | 1#382Linked List Random Node0.556中等2#398Random Pick Index0.599中等相关/参考链接
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