myleetcode

My LeetCode Solutions!

INDEX

• Array and String
• Queue & Stack
• Linked List
• Hash Table
• Trie
• Binary Search
• Binary Search Tree
• N-ary Tree
• Binary Tree
• Interview Practice

Array and String

#	Title	Solutions	Difficulty	Tag
14	Longest Common Prefix	Java & Python	Easy	Introduction to String
26	Remove Duplicates from Sorted Array	Java & Python	Easy	Conclusion
27	Remove Element	Java & Python	Easy	Two-Pointer Technique
28	Implement strStr()	Java & Python	Easy	Introduction to String
54	Spiral Matrix	Java & Python	Medium	Introduction to 2D Array
66	Plus One	Java & Python	Easy	Introduction to Array
67	Add Binary	Java & Python	Easy	Introduction to String
118	Pascal's Triangle	Java & Python	Easy	Introduction to 2D Array
119	Pascal's Triangle II	Java & Python	Easy	Conclusion
151	Reverse Words in a String	Java & Python	Medium	Conclusion
167	Two Sum II - Input array is sorted	Java & Python	Easy	Two-Pointer Technique
189	Rotate Array	Java & Python	Easy	Conclusion
209	Minimum Size Subarray Sum	Java & Python	Medium	Two-Pointer Technique
283	Move Zeroes	Java & Python	Easy	Conclusion
344	Reverse String	Java & Python	Easy	Two-Pointer Technique
485	Max Consecutive Ones	Java & Python	Easy	Two-Pointer Technique
498	Diagonal Traverse	Java & Python	Medium	Introduction to 2D Array
557	Reverse Words in a String III	Java & Python	Easy	Conclusion
561	Array Partition I	Java & Python	Easy	Two-Pointer Technique
724	Find Pivot Index	Java & Python	Easy	Introduction to Array
747	Largest Number Greater Than Twice of Others	Java & Python	Easy	Introduction to Array

Queue & Stack

#	Title	Solutions	Difficulty	Tag
200	Number of Islands	Java & Python	Medium	Queue and BFS
622	Design Circular Queue	Java & Python	Medium	Queue: First-in-first-out Data Structure
752	Open the Lock	Java & Python	Medium	Queue and BFS

Linked List

#	Title	Solutions	Difficulty	Tag
19	Remove Nth Node From End of List	Java & Python	Medium	Two Pointer Technique
141	Linked List Cycle	Java & Python	Easy	Two Pointer Technique
142	Linked List Cycle II	Java & Python	Medium	Two Pointer Technique
160	Intersection of Two Linked Lists	Java & Python	Easy	Two Pointer Technique
203	Remove Linked List Elements	Java & Python	Easy	Classic Problems
206	Reverse Linked List	Java & Python	Easy	Classic Problems
234	Palindrome Linked List	Java & Python	Easy	Classic Problems
328	Odd Even Linked List	Java & Python	Medium	Classic Problems
707	Design Linked List	Java & Python	Easy	Singly Linked List

Hash Table

Trie

Binary Search

#	Title	Solutions	Difficulty	Tag
33	Search in Rotated Sorted Array	Java & Python	Medium	Template I
69	Sqrt(x)	Java & Python	Easy	Template I
153	Find Minimum in Rotated Sorted Array	Java & Python	Medium	Template II
162	Find Peak Element	Java & Python	Medium	Template II
278	First Bad Version	Java & Python	Easy	Template II
374	Guess Number Higher or Lower	Java & Python	Easy	Template I
704	Binary Search	Java & Python	Easy	Background

Binary Search Tree

N-ary Tree

Binary Tree

Interview Practice