Softography
Released games that I've worked on over the past six years
Rogue Trooper Redux
October 2017
Rogue Trooper Redux
October 2017
Rogue Trooper Redux
October 2017
Rogue Trooper Redux
October 2017
LEGO Minifigures Online
September 2015
Frozen Synapse Prime
August 2015
Cricket Captain 2015
August 2015
Cricket Captain 2015
June 2015
Cricket Captain 2015
June 2015
LEGO Minifigures Online
June 2015
Z Steel Soldiers
April 2015
Frozen Synapse Prime
March 2015
Burn Zombie Burn
December 2014
LEGO Minifigures Online
December 2014
Z Steel Soldiers
August 2014
Z Steel Soldiers
August 2014
Z
July 2014
Superfrog HD
June 2014
Burn Zombie Burn
May 2013
Worms 2: Armageddon
April 2013
I'm a professional game developer from Wakefield, England, working as a senior programmer for Rebellion North.
I'm a married father of five and I a also sometimes do Retroburn stuff.
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Monday, May 31st 2010 / Web
Project Euler - Problem 6
It took less than a minute to complete puzzle number 6 from Project Euler:
This simply required working up from 1 to 100 and keeping a sum and a sum of their squares. Finally, I squared the sum and substracted the summed squares:
If you found this post helpful please leave a comment below:
The sum of the squares of the first ten natural numbers is,
12 + 22 + ... + 102 = 385
The square of the sum of the first ten natural numbers is,
(1 + 2 + ... + 10)2 = 552 = 3025
Hence the difference between the sum of the squares of the first ten natural numbers and the square of the sum is 3025 - 385 = 2640.
Find the difference between the sum of the squares of the first one hundred natural numbers and the square of the sum.
12 + 22 + ... + 102 = 385
The square of the sum of the first ten natural numbers is,
(1 + 2 + ... + 10)2 = 552 = 3025
Hence the difference between the sum of the squares of the first ten natural numbers and the square of the sum is 3025 - 385 = 2640.
Find the difference between the sum of the squares of the first one hundred natural numbers and the square of the sum.
This simply required working up from 1 to 100 and keeping a sum and a sum of their squares. Finally, I squared the sum and substracted the summed squares:
<?
/******************************************************************
* ProjectEuler.net * Problem 6 * 2010-05-31 * Martin Caine *
******************************************************************/
$totalSum = 0;
$totalSquares = 0;
for( $i=1; $i<101; $i++ )
{
$totalSum += $i;
$totalSquares += ($i*$i);
}
$totalSum *= $totalSum;
echo $totalSum-$totalSquares;
?>
If you found this post helpful please leave a comment below:
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