Leetcode: www.leetcode.com
HackerRank: www.hackerrank.com
Topcoder: https://www.topcoder.com/
GeeksforGeeks Interview Corner: http://www.geeksforgeeks.org/about/interview-corner/
喜刷刷：http://bangbingsyb.blogspot.com/
水中的鱼: http://fisherlei.blogspot.com/
GitBook: LeetCode题解: https://www.gitbook.com/book/siddontang/leetcode-solution/details
Ethan Li 的技术专栏: https://segmentfault.com/blog/ethanli
Buttercola: http://buttercola.blogspot.com/
I seek you, geeks!： http://icqgeeks.com/
原文：http://www.cnblogs.com/casperwin/p/6079749.html