Author: ACMer

Javascript is the world’s most used programming language nowadays. Your Javascript application can attract billions of audiences and there is no other programming language can achieve a similar scale. …

Ajax stands for AsynchronousJavascript and Xml. It is not a new programming language or tool. Instead, it is a new way of using existing standards to exchange data between client and …

Heron’s Formula is a method to compute the area of a triangle when you know its three sides, a, b, and c. The area S is then based on p where and can be easily implemented …

The problem is from codeforces: http://www.codeforces.com/problemset/problem/268/C This problem is put at the third problem in the online contests. But it seems too easy for being in that place. The sample …

The problem is from codeforces: http://www.codeforces.com/contest/268/problem/B This is clearly a math counting problem. In easy description, the problem can be described as: how many numbers are there in this pattern, …