I actually like fizzbuzz and stuff like that. My most recent and best coding challenge experience was one from Cloudera. It was 2 questions and I had 70 minutes time in total. The difficulty was not something crazy. To me it felt like something you would get as a homework in Uni, but slightly more complex. I was able to finish it in 40 or so minutes and even had fun doing it, because I did not get frustrated by lack of details in the problem description.
But when a company sends me 2 hours on some weird platform that tells me 3 out of 10 test cases work, but doesn't tell me why or what even the input is, I just get frustrated. One of the worst coding challenges was asking me to implement the cd (change directory) functionality. But the details were so bad that I had no idea if I have to invest time or not into edge cases etc. I basically had to guess the test cases, but eventually failed the test since I ran out of time.
But when a company sends me 2 hours on some weird platform that tells me 3 out of 10 test cases work, but doesn't tell me why or what even the input is, I just get frustrated. One of the worst coding challenges was asking me to implement the cd (change directory) functionality. But the details were so bad that I had no idea if I have to invest time or not into edge cases etc. I basically had to guess the test cases, but eventually failed the test since I ran out of time.