ch4/

Write a function that counts the number of bits that are different in two SHA256 hashes.

Issues prints a table of GitHub issues matching the search terms and reports the results in age categories of this month, this year, and older than a year.

Build a tool that lets users create, read, update, and close GitHub i̶s̶s̶u̶e̶s̶ pull requests from the command line, invoking their preferred text editor when substantial text input is required.

The JSON-based web service of the Open Movie Database lets you search https://omdbapi.com/ for a movie by name and download its poster image.

Create a web server that queries GitHub once and then allows navigation of the list of bug reports, milestones, and users.

Write a program that prints the SHA256 hash of it standard input by default but supports a command-line flag to print the SHA384 or SHA512 hash instead.

Write an in-place function to eliminate adjacent duplicates in a []string slice.

Modify charcount to count letters, digits, and so on in their Unicode categories, using functions like `unicode.IsLetter`.