Two Sum

two-sum

Longest Substring Without Repeating Characters

longest-substring-without-repeating-characters

Moving Average from Data Stream

moving-average-from-data-stream

Valid Parentheses

valid-parentheses

Kth Largest Element in an Array

kth-largest-element-in-an-array

Palindrome Linked List

palindrome-linked-list

Valid Anagram

valid-anagram

Ransom Note

ransom-note

Sliding Window Median

sliding-window-median

Analyze User Website Visit Pattern

analyze-user-website-visit-pattern

Remove All Adjacent Duplicates in String II

remove-all-adjacent-duplicates-in-string-ii

Generate Parentheses

generate-parentheses

Minimum Window Substring

minimum-window-substring

Maximum Depth of Binary Tree

maximum-depth-of-binary-tree

Balanced Binary Tree

balanced-binary-tree

Valid Palindrome

valid-palindrome

Longest Consecutive Sequence

longest-consecutive-sequence

Linked List Cycle

linked-list-cycle

LRU Cache

lru-cache

Lowest Common Ancestor of a Binary Tree

lowest-common-ancestor-of-a-binary-tree

Walls and Gates

walls-and-gates

Find Median from Data Stream

find-median-from-data-stream

Find Duplicate File in System

find-duplicate-file-in-system

Fibonacci Number

fibonacci-number

Lowest Common Ancestor of a Binary Tree III

lowest-common-ancestor-of-a-binary-tree-iii

Leetcodify Friends Recommendations

leetcodify-friends-recommendations

Leetcodify Similar Friends

leetcodify-similar-friends

Spotify

#	Title	Difficulty	Frequency
1	Two Sum	Easy	0.69
3	Longest Substring Without Repeating Characters	Medium	0.39
346	Moving Average from Data Stream	Easy	1.09