Map is a common way to transform lists in most programming languages. In Python, map is a function that loops over a list and applies a function (that you provide) to each item. Your function receives ...

A PriorityQueue is a list that always keeps its items sorted based on some rule, like smallest to largest. So, when you take an item out, you always get the one with the highest (or lowest) priority.

Twenty-five years is a long time, isn’t it? Presently, the life expectancy of an American male is 75.8 years, so it’s about one-third of the days and hours we’re hopefully blessed with to think about ...