|Life| DO, then EXTRACT

I like the ways this guy thinks.

習慣的思考模式是演繹 -> 歸納 -> 演繹 -> 歸納(簡稱為演繹 -> 歸納螺旋丸),不斷迂迴深入直到想出解法。

I like to do it first, analyze, and keep doing ……

In the beginning, I study from questions which designed by LeetCode.
Until solving 100 problems, I know some patterns.
I turned back to summarize those problems.
Then I keep doing ……