Akriti Chadda 5/27/20 Akriti Chadda 5/27/20

LeetCode 269 : Alien Dictionary

If you skip Leet Code Hard questions because they are labelled “hard”, you should watch this video to see how they are, in fact, simple to solve!

Akriti Chadda 5/20/20 Akriti Chadda 5/20/20

Leetcode 105 : Construct a tree from Preorder and Inorder Traversal

Step-by-step : input requirements, output, time & space complexities - the works!

Akriti Chadda 5/13/20 Akriti Chadda 5/13/20

Step-by-step : input requirements, output, time & space complexities - the works!

Akriti Chadda 5/6/20 Akriti Chadda 5/6/20

Don’t understand the problem statement or where to begin? Here’s a step by step solution along with Python Code.