I just created a new challenge in Practice Go collection, happy to review all possible solutions and choose the best one.

Secret Message

Create a function to decode a secret message, to do it you have to: - Sort the characters in the encoded string by the number of times this character appears in it (descending). - Now take the sorted string, and drop all the characters after (and including) the _

Examples

b_bcb_ => b_c => b

How to solve

• Each folder has a README.md file and _test.go file, check it and find what kind of function you need to implement.
• Code this function in the separate .go file inside a package and run tests. You may use anything you want except 3rd-party packages.
• Create a PR with one .go file.
• We will choose the most fast and elegant solution and merge into the repo within 7 days.

Run tests with benchmarks

go test -bench .