LeetCode

Solutions to leetcode problems

Problems

Name	Status	Tags	Languages
Add Two Numbers	✔️	#linked-list #math	C++
Add Two Numbers	✔️	#linked-list #math	Python
Best Time to Buy and Sell Stock	✔️	#array #dynamic-programming	Python
Climbing Stairs	✔️	#recursion #memoization	Python
Container with Most Water	✔️	#array #two-pointers #greedy	Python
Contains Duplicate	✔️	#array #hash-table #sorting	Python
Delete Node in a Linked List	✔️	#linkedlist	Python
Encode and Decode Strings	✔️	#array #string	Python
Fibonacci Number	✔️	#recursion #memoization	Python
Group Anagrams	✔️	#array #hash-table #sorting #string	Python
Integer to Roman	✔️	#string #math	Python
Invert Binary Tree	✔️	#tree	Python
K-th Symbol in Grammar	✔️	#recursion	Python
Longest Common Prefix	✔️	#trie #string	Python
Longest Consecutive Sequence	✔️	#array #hash-table #union-find	Python
Longest Substring without repeating characters	✔️	#hash table #two pointers #string #sliding window	Python
Maximum Depth Of Binary Tree	✔️	#recursion #tree	Python
Maximum Subarray	✔️	#kadane #array	Python
Merge Sort	✔️	#recursion #sorting	Python
Merge Two Sorted Lists	✔️	#recursion #linked-list	Python
N Queens II	✔️	#recursion #backtracking	Python
Palindrome Number	✔️	#math	Python
Palindromic Substrings	🚀	#recursion #dynamic-programming #memoization	Python
Pascal's Triangle II	✔️	#recursion	Python
Pow(x,n)	✔️	#recursion #memoization	Python
Product of array except self	✔️	#array #prefix-sum	Python
Reverse Integer	✔️	#math	Python
Reverse Linked List	✔️	#linkedlist #recursion	Python
Reverse String	✔️	#recursion	Python
Roman to Integer	✔️	#hash-table #math #string	Python
Search a 2D Matrix II	✔️	#recursion #searching #matrix	Python
Search BST	✔️	#recursion #bst	Python
String to Integer (atoi)	✔️	#math #string	Python
Sudoku Solver	✔️	#recursion #backtracking	Python
Swap nodes in pairs	✔️	#recursion #linked-list	Python
Three Sum	🚀	#array #two-pointers #sorting	Python
Top K Frequent	✔️	#array #hash-table #divide-and-conquer #sorting #heap #bucket-sort #counting #quick-select	Python
Two Sum	✔️	#array #hash-table	Python
Validate Binary Search Tree	✔️	#recursion #tree	Python
Validate Anagram	✔️	#hash-table #string sorting	Python
Validate Palindrome	✔️	#two-pointers #string	Python
Valid Parantheses	✔️	#string #stack	Python
ZipZag Conversion	✔️	#string	Python

Labels:

• ✔️ : Done
• 🕊️ : Incomplete
• 🚀 : Needs optimization