Multiplication Tips »
Multiplying by five Jenny Logwood writes: Here is an easy way to find an answer to a 5 times question.If you are multiplying 5 times an even number: halve the…
29 Sep 2009 / No Comment / Read More »
Multiplying a two-digit number by 11 »
For instance, suppose you wanted to multiple 43 x 11. Well, you may be able to solve this problem in your head already if you realize that you can first…
6 Sep 2009 / 3 Comments / Read More »How to swap the content of two variables without using an intermediate storage location? »
Traditionally most programmers use an extra variable when it’s come to swap the content of two variable. well, some programmers…
20 Apr 2011 / 5 Comments / Read More »Fastest Algorithm to Find Greatest Common Divisor »
In mathematics, the greatest common divisor (gcd), also known as highest common factor, of two or more non-zero integers, is…
29 Nov 2010 / No Comment / Read More »Advantage of new[] over malloc() »
If you are a C programmer and just turning to C++, you may be wondering what was wrong with my…
17 Nov 2010 / No Comment / Read More »Fastest Algorithm to generate primes in c/c++ – Sieve of Eratosthenes »
In mathematics, the Sieve of Eratosthenes is a simple, ancient algorithm for finding all prime numbers up to a specified…
26 Oct 2010 / 2 Comments / Read More »
