This is one the website that I am using from last 2 years for practicing coding problem. This website provides topic wise coding problems for practicing. I already solved many problems and it developed my coding skills very much.
So if you are a student who love to code and want to practice coding then you can use it in a beginning phase. Because it has easy problems which one can solve in his beginning phase.
Apart from that this website is also organizing some good online coding contests in which you can participate and win some goodies and parks. Also will get the job