Comment by rkrisztian

If you guess at random, that's 25% probability to get the right answers, which gets you 7/28 points in average. I got 14/28 by trying hard and I still hate the result, but it's also true that the questions were largely impractical: noone parses dates like this in a real production app. We always validate the date format first. So noone should feel bad at their results.