Monthly Archives: October 2011

Project Euler Problem 10 – Revisited (PHP)

Posted on October 27, 2011 by

Problem 10 The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17. Find the sum of all the primes below two million. Script Execution Time: 22.5509 seconds Changes Basically, all math functions went … Continue reading →

Posted in PHP, Programming, Project Euler | Tagged , , , | Comments Off on Project Euler Problem 10 – Revisited (PHP)

Class for form creation

Posted on October 20, 2011 by

My Form Builder Class This class is designed to generate an HTML form using the following elements: Textboxes (with and without labels) Password Boxes (with and without labels) Check Boxes Radio Buttons The class is set up to allow for … Continue reading →

Posted in PHP, Programming | Tagged , | Comments Off on Class for form creation

Project Euler Problem 13 (PHP)

Posted on October 10, 2011 by

Problem 13 Work out the first ten digits of the sum of the following one-hundred 50-digit numbers. 37107287533902102798797998220837590246510135740250 46376937677490009712648124896970078050417018260538 74324986199524741059474233309513058123726617309629 91942213363574161572522430563301811072406154908250 23067588207539346171171980310421047513778063246676 89261670696623633820136378418383684178734361726757 28112879812849979408065481931592621691275889832738 44274228917432520321923589422876796487670272189318 47451445736001306439091167216856844588711603153276 70386486105843025439939619828917593665686757934951 62176457141856560629502157223196586755079324193331 64906352462741904929101432445813822663347944758178 92575867718337217661963751590579239728245598838407 58203565325359399008402633568948830189458628227828 80181199384826282014278194139940567587151170094390 35398664372827112653829987240784473053190104293586 86515506006295864861532075273371959191420517255829 71693888707715466499115593487603532921714970056938 54370070576826684624621495650076471787294438377604 53282654108756828443191190634694037855217779295145 36123272525000296071075082563815656710885258350721 45876576172410976447339110607218265236877223636045 17423706905851860660448207621209813287860733969412 … Continue reading →

Posted in PHP, Programming, Project Euler | Tagged , , , | Comments Off on Project Euler Problem 13 (PHP)

Project Euler Problem 12 (PHP)

Posted on October 10, 2011 by

Problem 12 The sequence of triangle numbers is generated by adding the natural numbers. So the 7th triangle number would be 1 + 2 + 3 + 4 + 5 + 6 + 7 = 28. The first ten terms … Continue reading →

Posted in PHP, Programming, Project Euler | Tagged , , , | Comments Off on Project Euler Problem 12 (PHP)

Project Euler Problem 11 (PHP)

Posted on October 10, 2011 by

Problem 11 In the 20×20 grid below, four numbers along a diagonal line have been marked in red. 08 02 22 97 38 15 00 40 00 75 04 05 07 78 52 12 50 77 91 08 49 49 … Continue reading →

Posted in PHP, Programming, Project Euler | Tagged , , , | Comments Off on Project Euler Problem 11 (PHP)