Cant remember the name of a coding website

The website isn’t leetcode, it was part of some international olympiad I think and it consisted of coding questions where you had to answer questions within the limits of some specified time, it had q

The website isn’t leetcode, it was part of some international olympiad I think and it consisted of coding questions where you had to answer questions within the limits of some specified time, it had questions like how many 0’s are in n! or solve tower of hanoi or what not, it had a leaderboard and the people on top usually used a language called Ruby? You could submit ur programs and it would evaluate ur code to see whether it passed.