https://leetcode.com/discuss/general-discussion/460599/blind-75-leetcode-questions https://hackernoon.com/14-patterns-to-ace-any-coding-interview-question-c5bb3357f6ed https://www.techinterviewhandbook.org/grind75?difficulty=Easy https://www.techinterviewhandbook.org/algorithms/array/ https://www.cs.usfca.edu/~galles/visualization/Algorithms.html https://seanprashad.com/leetcode-patterns/