Archive for the Blogs Category

Project Euler – Problem 3 – Largest Prime Factor

Problem 3: The prime factors of 13195 are 5, 7, 13 and 29. What is the largest prime factor of the number 600851475143 ?

Simple Script Prime Numbers

I was working with the Project Euler #3 and i need to check if a number is a prime, so i decided to post the script for checking if a number is a prime in here first. The first number on the Euler problem 3 is 13195. Checking […]

Project Euler – Problem 2 – Even Fibonacci Numbers

Problem 2:  Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be: 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, … By considering the terms in the Fibonacci […]

Project Euler – Problem 1 – Multiples of 3 and 5

Problem 1:  If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23. Find the sum of all the multiples of 3 or 5 below 1000. Haskell Solutions […]

Simple Script Bubble Sort an Array in PHP

Another common script is the bubble sort. Although I do not recommend using it as it is too slow as compared to the other sorting algorithms like merge sort and quick sort, it is worth knowing how it is done. The basic idea is to compare every […]

Simple Script Reverse a String in PHP

Its almost the end of the semester, and after that everyone will be out looking for a job. One thing i have noticed is that most entrance exams for programming involves some sort of a test whether you know how to code. Most of these exams would […]