Category Archives: Computer Science

How to calculate median from an array in Java

Posted on October 1, 2021 by Andrej Buday

In this short article, we will see how to compute median in Java. Continue reading →

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Project Euler Problem 3 – Largest prime factor

Posted on January 16, 2016 by Andrej Buday

Project Euler Problem 3 is the first problem in which I realized that the brute-force computation is not the best way to achieving the results. Here is the problem description: The prime factors of 13195 are 5, 7, 13 and 29. What is the largest prime factor of the number 600851475143 ? Continue reading →

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Project Euler Problem 2 – Fibonacci sequence

Posted on January 16, 2016 by Andrej Buday

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, … Find the sum of all the even-valued terms in the sequence which do not exceed four million. Continue reading →

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Project Euler Problem 1 – Multiples of 3 and 5

Posted on January 16, 2016 by Andrej Buday

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. Continue reading →

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