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⛳️LeetCode by java : data structure and algorithm

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lingyejun/LeetCode

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LeetCode

LeetCode Algorithm

LeetCode solutions in Java.

Please feel free to fork and star to support this repo, thank you!

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QA List

# Title Tag
1 TwoSum Integer
2 Add Two Numbers Linked List, Math
3 Longest Substring Without Repeating Characters Hash Table, String
4 Median of Two Sorted Arrays Array, Binary Search, Divide and Conquer
5 Longest Palindromic Substring String
6 ZigZag Conversion String
7 Reverse Integer Math
8 String to Integer (atoi) Math, String
9 Palindrome Number Math
10 Regular Expression Matching String, Dynamic Programming, Backtracking
11 Container With Most Water Array, Two Pointers
12 Integer to Roman Math, String
13 Roman to Integer Math, String
14 Longest Common Prefix String
15 3Sum Array, Two Pointers
16 3Sum Closest Array, Two Pointers
17 Letter Combinations of a Phone Number String, Backtracking
18 4Sum Array, Hash Table, Two Pointers
19 Remove Nth Node From End of List Array
20 Valid Parentheses Array
21 Merge Two Sorted Lists LinedList
22 Generate Parentheses Recursion
23 Merge k Sorted Lists Linked List, Heap
24 Swap Nodes in Pairs Linked List
25 Reverse Nodes in k-Group Linked List
26 Remove Duplicates from Sorted Array Array
27 Remove Element Array
28 Implement strStr String, Two Pointers
29 Divide Two Integers Binary Search
30 Substring with Concatenation of All Words HashTable, Two Pointers

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