leetcode-csharp

Today Update

HashTable

438 Find All Anagrams in a String

• Github:#438 Find All Anagrams in a String
• CSDN:#438 Find All Anagrams in a String

204 Count Primes

• Github:#204 Count Primes
• CSDN:#204 Count Primes

Math

202 Happy Number

• Github:#202 Happy Number
• CSDN:#202 Happy Number
• Floyd's Tortoise and Hare
• reference:https://en.wikipedia.org/wiki/Cycle_detection
• image:

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Solution List

solutions using C# for leetcode according to tags of questions Tags are following:

• Array
• Hash Table
• Linked List
• Math
• Two Pointers
• String
• Binary Search
• Dynamic Programming
• Stack
• Tree

Details

Array

• #35 Search Insert Position

• #118 Pascal’s Triangle

• #119 Pascal’s Triangle II

• #414 Third Maximum Number

• #66 Plus One

• #121 Best time to buy and sell stock

• #26 Remove Duplicates from Sorted Array

• #122 BestTimeToBuyandSellStockII

• #27 Remove element

532 K-diff Pairs in an Array

• Github:#532 K-diff Pairs in an Array
• CSDN:#532 K-diff Pairs in an Array

217 Contains Duplicate

• Github:#217 Contains Duplicate
• CSDN:#217 Contains Duplicate

448 Find All Numbers Disappeared in an Array

• Github:#448 Find All Numbers Disappeared in an Array
• CSDN:#448 Find All Numbers Disappeared in an Array

219 Contains Duplicate II

• Github:219 Contains Duplicate II
• CSDN:219 Contains Duplicate II

189. Rotate Array

• Github:189. Rotate Array
• CSDN:189. Rotate Array

448 Find All Numbers Disappeared in an Array

• Github:#448 Find All Numbers Disappeared in an Array
• CSDN: #448 Find All Numbers Disappeared in an Array

219 Contains Duplicate II

• Github: 485. Max Consecutive Ones
• CSDN: 485. Max Consecutive Ones

566 Reshape the Matrix

• Github:#566 Reshape the Matrix
• CSDN: #566 Reshape the Matrix

561 Array Partition I

• Github: #561 Array Partition I
• CSDN: #561 Array Partition I

Hash Table

• #136 Single number

• #1 Two Sum

• #447 Number of Boomerangs

• #463. Island Perimeter

• #409 Longest Palindrome

242 Valid Anagram

• Github:#242 Valid Anagram
• CSDN: #242 Valid Anagram

561 Array Partition I

• Github: #205 Isomorphic Strings
• CSDN: #205 Isomorphic Strings

Linked List

• #141 Linked List Cycle

• #237 Delete Node in a Linked List

• #83 Remove Duplicates from Sorted List

• #160 Intersection of Two Linked Lists

• #203 Remove Linked List Elements

• #206 Reverse Linked List

• #234 Palindrome Linked List

• #21 Merge Two Sorted Lists

Math

• #231 Power of Two

• #268 Missing Number

• #507 Perfect Number

Two Pointers

• #345 Reverse Vowels of a String

• #283 Move Zeroes

• #88 Merge Sorted Array

#234Palindrome Linked List

String

• #58 Length of Last Word

• #20 Valid Parentheses

• #520 Detect Capital

• #459 Repeated Substring Pattern

• #434 Number of Segments in a String

• #14 Longest Common Prefix

• #383 Ransom Note

Binary Search

• #367 Valid Perfect Square

• #167 Two Sum II - Input array is sorted

• #441 Arranging Coins

• #278 First Bad Version

• #349 Intersection of Two Arrays 350. Intersection of Two Arrays II

• #349 Intersection of Two Arrays