My algorithm road
- HackerRank: https://www.hackerrank.com/domains/algorithms
- LeetCode: https://www.lintcode.com/zh-cn/problem/
- LintCode: https://leetcode.com/problemset/algorithms/
- NowCoder: https://www.nowcoder.com/activity/oj
- Pat: https://www.patest.cn/p/index#test