Welcome to Day 13 of the Perl 6 One-Liner Advent Calendar! Today’s one-liner will be quite long, and it would be better to write it in two lines, but it will show a very nice feature of Perl 6’s Date objects: it can be easily used in a range. Today, we are solving Problem 19 … Continue reading “🎄 13/25. How many days in the century match the condition?”