What is the most visited web site of the program ape?

To be a good program ape, not only must have a certain talent, often communicate with the great God, their own practice is the right way. Here are some Quora users recommend foreign sites, with the vast number of programs ape or want to learn programming friends to share:

1) programming exercises and contests class

http://www.codechef.com/
http://www.spoj.com/p/
/http programmingpraxis.com/
Http://projecteuler.net/about
http://www.topcoder.com/
http://codeforces.com/
http://www.hackerearth.com/
http://www.pythonchallenge.com/
https://www.hackerrank.com/
/http leetcode.com/

Bó Lè Headlines Add to the big collection of programming contests and logical questions sites

2) Tutorial Class

http://www.learnstreet.com/
http://www.geeksforgeeks.org/
/http www.codeschool.com/
Http://graphics.stanford.edu/~seander/bithacks.html#CopyIntegerSign
/http// www.stanford.edu/class/cs97si/
Http://pratikpoddarcse.blogspot.in/search/label/EasyPuzzles
/http// sbjoshi.wordpress.com/
http://www.good-tutorials.com/

3) Community Exchange class

https://www.quora.com/
http://stackoverflow.com/
https://github.com/
Http://www.careercup.com/page
https://geekli.st/
http://www.reddit.com/r/programming/

4) must-read articles

1. Peter Norvig: Self-taught programming, ten years of sharpening a sword

2. "Puzzle Websites to sharpen Your programming Skills"

(Of course, there are a lot of recommended sites, interested in the Quora can read the original to see) read the original»

What is the most visited web site of the program ape?