Category
combinatorics
Verbal Arithmetic Puzzle
This is a problem where each letter in a given puzzle represents a unique digit. The goal is to assign digits to the letters such that when the words are summed, they produce a correct numerical result, similar to a standard arithmetic equation. Additionally, no word can have leading zeros, and each letter must represent a different digit. 
Thinking in bets book summary
Thinking in Bets will teach you how to make smart decisions when you do not have all the facts. 
Kth Smallest Instructions
Find the minimum number of k-length bit flips to make an array of all 1s or kth smallest string of instructions to reach the bottom-right corner of a grid