Codeforces is an site for sporting programming as i think you alredy know. But what is making it's better from other sites? First of all is almost everyday contests and many problems like there is almost 1000 Codeforces rounds but there are ust Codeforces rounds there are many other contests like Kotlin heros or ABC rounds etc. Second Codeforces have many people and some of them are sending problems in polygon and Codeforces can add them to contests. Third most of problems are funny or insteresting. There are many things that are making Codeforces better then other sites so if you are new at COdeforces hope you will stay here :)