Is there any online palmistry learning websites?

How much does coding on online websites (like uva, codechef, spoj, hackerrank etc) matter? And how does it compare to learning with careercup, geeksforgeeks etc. Where does one draw the line?

• As a matter of fact, I love the former but its kind of a slow learning..

• Answer:

  You should always look it as means to an end and to get better at theoretical computer science such as understanding of data structures and algorithms. Doing way too much competitive programming will do little help if you don't expand your knowledge. You will be little use to a team when you have to work on other exciting technologies. Don't get too much addicted to it and try and solve real world problems that really matters.