记录了刷题过程以及思考总结，尽可能从不同角度出发思考，并且由最初的最好想的暴力解法逐渐过渡到最优解，力求时间复杂度最低。
This records some Leetcode Problems and my solutions. Additionally, I made them as videos to help more people in the way to find a job. To be more convenient, I made some English videos in push them in my YouTube Channel and hope it helps me clear my illustrations and help others vividly.
However, the solutions that in .md files are explained in Chinese and later I will write a English Version.
For some specific companies like Facebook (Temporarily closed) you can also see my detailed solutions and YouTube videos for them.