Programming challenges in coding interviews

This is a list of the best LeetCode questions that teach you core concepts and techniques for each category/type of problems:

https://www.teamblind.com/post/New-Year-Gift—Curated-List-of-Top-75-LeetCode-Questions-to-Save-Your-Time-OaM1orEU

Another list of CSES Problem Set

https://cses.fi/problemset/

The simplest book to get anyone started in studying for coding interviews is the “Cracking the Coding Interview”:

Christos Katsoulas

Computer Science teacher