[Leetcode] High Frequency Problems, Bit_Manipulation (High Frequency Problems, Bit_Manipulation)

Up to now, the total number of LeetCode questions has been 1582题, and it is estimated that the average annual growth will be 300题around in the future . Most people will definitely be 刷不完的, so you have to selectively brush LeetCode.

A generally accepted strategy for brushing questions is 按类别刷题, but each category also has many questions, in a limited time 到底该刷哪些题呢? Individuals sorted out and included the topics in each category according LeetCode官方to each topic given . For topics whose official statistical frequency was too low, they were not included, and finally got this high-frequency topic table.出现频率高频出现

For example, the title of the title number #275and #270in the following figure will be included, and the #275frequency of occurrence is greater than #270; for the title of the title number #1011and #1182, because the occurrence frequency is too low, it will not be included:

Pick up the keyboard and work hard! I wish you all a successful landing! It's not easy to organize, please like it!

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Bit Manipulation-27 problems (Bit_Manipulation, 27 problems)

Date of data: 2020/03/26 (LeetCode question number at this time: 1582)
Data source: LeetCode official. Questions of different categories are arranged in descending order according to the official frequency (Frequency), and questions with frequency statistics are selected.

Sort	Question number	topic	Passing rate	Difficulty
1	#260	Single Number III	0.707	medium
2	#421	Maximum XOR of Two Numbers in an Array	0.591	medium
3	#78	Subsets	0.769	medium
4	#136	Single Number	0.66	simple
5	#137	Single Number II	0.661	medium
6	#169	Majority Element	0.628	simple
7	#371	Sum of Two Integers	0.541	simple
8	#461	Hamming Distance	0.754	simple
9	#187	Repeated DNA Sequences	0.44	medium
10	#401	Binary Watch	0.52	simple
11	#476	Number Complement	0.683	simple
12	#338	Counting Bits	0.749	medium
13	#268	Missing Number	0.548	simple
14	#190	Reverse Bits	0.566	simple
15	#201	Bitwise AND of Numbers Range	0.445	medium
16	#477	Total Hamming Distance	0.493	medium
17	#389	Find the Difference	0.612	simple
18	#318	Maximum Product of Word Lengths	0.628	medium
19	#393	UTF-8 Validation	0.372	medium
20	#405	Convert a Number to Hexadecimal	0.499	simple
21	#342	Power of Four	0.483	simple
22	#191	Number of 1 Bits	0.657	simple
23	#411	Minimum Unique Word Abbreviation	0.458	difficult
24	#231	Power of Two	0.478	simple
25	#320	Generalized Abbreviation	0.611	medium
26	#397	Integer Replacement	0.344	medium
27	#693	Binary Number with Alternating Bits	0.606	simple

Related/reference links

leetcode-cn
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