Tag: math
September 16, 2012
algorithms, batch script, beginner, code, code library, delphi, encryption, implementation, programming languages, string, tools / utilities, windows, windows command shell, windows scripting host
Rot13 and Rot5 are two ASCII rotation scheme that are made for alphabetic and digits respectively. The Rot13, namely, rotates the letter by 13 places, ‘A’ to ‘N’, ‘B’ …
September 14, 2012
algorithms, batch script, beginner, brute force, github, implementation, programming languages, recursive, tools / utilities, tricks
I have used a lot the Fibonacci numbers as an example to illustrate the programming concepts and ideas. Today, I still use this to revisit the concepts of programming …
The problem is from codeforces http://codeforces.com/problemset/problem/221/B The problem statement is clear. The answer is to count the number of divisors that has at least one common digit with the …
In , the euclidean algorithms i.e. gcd and lcm are presented. Especially the gcd function, which computes the greatest common divisor, is fundamentally important in math and can be …
The Iterator is an interface for external iterators or objects that can be iterated themselves internally. In PHP, it is defined as follows. Iterator extends Traversable { /* Methods …