Xavier Elon

4.53K subscribers

99 videos

I am a 2020 Computer Science graduate of Oregon State University. I currently work for Asurion in the UBreakiFix department as a DevOps engineer 1. I love st...

Latest Videos

HackerRank Minimum Swaps 2 Solution Explained (Java + Whiteboard)

HackerRank Binary Trees How to Find Height of Binary Tree Solution Explained (Java)

LeetCode 143 Reorder List Solution Explained (Whiteboard + Algorithm in Java)

LeetCode 567 Permutation in String Solution Explained (Whiteboard + Algorithm in Java)

LeetCode 785 Is Graph Bipartite Solution Explained (Whiteboard + Algorithm in Java)

LeetCode 116 Path Sum II Solution Explained (White + Algorithm in Java)

LeetCode 116 Populating Next Right Pointers in Each Node

LeetCode 953 Verifying an Alien Dictionary Solution Explained (Java + Whiteboard)

LeetCode 112 Path Sum Solution Explained Java + Whiteboard

LeetCode 129 Sum Root to Leaf Numbers Solution Explained (Java + Whiteboard)

LeetCode 123 Best Time to Buy and Sell Stock III Solution Explained (Java + Whiteboard)

LeetCode 122 Best Time to Buy and Sell Stock II Solution Explained (Java + Whiteboard)

LeetCode 121 Best Time to Buy and Sell Stock Solution Explained in Java

LeetCode 349 Intersection of Two Arrays Solution Explained (Java)

LeetCode 366 Find Leaves of Binary Tree Solution Explained (Java + Whiteboard)

LeetCode 315 Sum of Nodes with Even-Valued Grandparent Solution Explained (Java + Whiteboard)

LeetCode 713 Subarray Product Less Than K Solution Explained (Java + Whiteboard)

LeetCode 1 Two Sum All Solutions Explained Java + Whiteboard

LeetCode 590 N-ary Tree Postorder Traversal

LeetCode 589 N-Ary Tree Pre-Order Traversal Iterative + Recursive Solution (Java + Whiteboard)

LeetCode 965 Univalued Binary Tree Solution Explained (Java)

LeetCode 350 Intersection of Two Arrays II Solution Explained (Java + Whiteboard)

How I Passed My AWS Cloud Practitioner Exam in 10 Days (as a non-millionaire)

LeetCode 152 Maximum Product Subarray Solution Explained (Java + Whiteboard)

HackerRank Repeated String Solution Explained (Java)

HackerRank Equalize the Array Solution Explained (Java + Whiteboard)

LeetCode 264 Ugly Number II Solution Explained (Whiteboard + Java)

LeetCode 1512 Number of Good Pairs Solution Explained (Java + Whiteboard)

LeetCode 263 Ugly Number Solution Explained (Java)

LeetCode 680 Valid Palindrome II Greedy Algorithm Explained (Java)