Ground Strokes with More Movements of Wrists

The movement of the wrists should be able to provide faster and more stable strokes, and maybe even shed some lights on the servings.

My 2015 and New Year Resolution

A summary of the year that is almost past, and some thought towards the coming year. (in Chinese)

Longest Palindromic Substring

A list of references for understanding/solving this puzzle

How Safe is Your Job?

It is a title of a podcast from Freakonomics. It was interesting, inspiring, and hilarious, so I listened it twice as I was dring towards and back from Dallas.

Thinking Through Dynamic Programming

What is the similarity between generating Fibonacci number and calculating the minimum editing distance of two strings?