-
N-ary Tree Level Order Traversal - Easy BFS solution
Breadth-First Search
Medium
Tree
-
Linked List Cycle II - An easy and a difficult solution
Hash Table
Linked List
Medium
Two Pointers
-
House Robber III - Recursion+Memoization [cpp] Explained with intuitions step-wise
Binary Tree
C++
Depth-First Search
Dynamic Programming
Medium
Memoization
Recursion
Tree
-
Construct Binary Tree from Preorder and Inorder Traversal - Two easy to understand recursive solutions
Array
Binary Tree
C
Divide and Conquer
Hash Table
Medium
Tree
-
Find All Possible Recipes from Given Supplies - Two ways to do topological sort
Array
C
Graph
Hash Table
Medium
Python
String
Topological Sort
-
Check if a Parentheses String Can Be Valid - Greedy Solution with easy to understand intuition [C++,Python]
C
Greedy
Medium
Python
Stack
String
-
Robot Bounded In Circle - C++ Basic solution
Math
Medium
Simulation
String
-
Gray Code - Python easy to understand 3 line recursive solution
Backtracking
Bit Manipulation
Math
Medium