-
Cousins in Binary Tree II - DFS solution + BFS solution
Binary Tree
Breadth-First Search
C++
Depth-First Search
Hash Table
Medium
Tree
-
Longest Palindromic Subsequence - Bottom-up DP explained
C++
Dynamic Programming
Medium
String
-
Longest Palindromic Subsequence - Bottom-up + Top-down DP explained
C++
Dynamic Programming
Medium
String
-
Simplify Path - Short stack solution
Medium
Python3
Stack
String
-
Removing Stars From a String - Simple stack solution
C++
Medium
Simulation
Stack
String
-
Design Browser History - Simple array solution [Easy + Short]
Array
C++
Data Stream
Design
Doubly-Linked List
Linked List
Medium
Stack
-
Convert Sorted List to Binary Search Tree - An elegant solution
Binary Search Tree
Binary Tree
C++
Divide and Conquer
Linked List
Medium
Tree
-
String Compression - Simple two pointer solution
C++
Medium
String
Two Pointers