This is the question of math that has been asked in amazon. I have tried hard to solve and finally solved it. A very good question it is and genius can only solve it. And by the way it is quite easy if

Interesting javascript hack, you should know 1. Javascript Closures A closure is an inner function that accesses to the outer function’s variables. It has three scopes (access variables) Own scope (variables

Dynamic Programming (DP)  is one of the very important algorithm in Computer Science. Here is the simplest example of demonstrating the concept of DP if you want to tell you 5-year-old son. Give 5

 The following seems an easy question, to get the area of the rectangluar triangle with the slope equals to 10 and the height equals to 6.   据说是一个印度人杀入微软最后的面试, 面试官给了这么一道小学数学几何题:   If