http://guides.rubyonrails.org/getting_started.html
rails new -h see all app builder switches
app/ Contains the controllers, models, views and assets for your application. You'll focus on this folder for the remainder of this guide.
config/ Configure your application's runtime rules, routes, database, and more. This is covered in more detail in Configuring Rails Applications
config.ru Rack configuration for Rack based servers used to start the application.
| <?php | |
| define('LIMIT', 4000000); | |
| $previous = 1; | |
| $current = 2; | |
| $result = 0; | |
| while($current<LIMIT){ // while we didn't reach the limit |
| LIMIT = 4000000 | |
| previous = 1 | |
| current = 2 | |
| result = 0 | |
| while current<LIMIT # while we didn't reach the limit | |
| # add it if even |
| factor = 600851475143 | |
| for divider in 2...factor # check if number is prime | |
| # divide it and retry of number is divisible | |
| factor /= divider and retry if factor%divider==0 | |
| end | |
| puts factor # here is out prime part | |
| # this is my output and timing ;) | |
| # time ruby problem3.rb |
| Yao Ming’s Bitch please fakss | |
| Yao Ming crying fakss31 | |
| Yao ming Forever alone foreverdontcare fakss34 | |
| Yao Ming zingy 3leko fakss32 | |
| Troll face trollmeme | |
| Adel Imam aho 8lasa kda ahowkda | |
| Are you fucking kidding me? atmz7 | |
| Flipped Are you fucking kidding me? atmz77 | |
| Are you serious? areyouseriousmeme | |
| Mr. Bean’s If you know what I mean [[ifuknowwhatimean]][[youknowwhatimean]][[mrbeanmeme]] |
| class Integer | |
| @@permutation_matrices = {} | |
| @@phis = {} | |
| def phi | |
| return @@phis[self] unless @@phis[self].nil? | |
| @@phis[self] = (1...self).select{ |x| gcd(x)==1 }.length | |
| end | |
| def permutation?(other) | |
| permutation_matrix==other.permutation_matrix | |
| end |
| class Integer | |
| def palindrom? | |
| "#{self}"=="#{self}".reverse | |
| end | |
| end | |
| largest = 0 | |
| for n1 in 100..999 | |
| for n2 in n1..999 | |
| largest = n1*n2 if (n1*n2).palindrom? and n1*n2>largest |
| class Integer | |
| def number_matrix | |
| m = Array.new.fill 0,0..9 | |
| tmp = self | |
| while tmp>0 | |
| digit = tmp%10 | |
| tmp = tmp/10 | |
| m[digit] = m[digit]+1 | |
| end |
| class Integer | |
| def to_a | |
| arr = [] | |
| tmp = self | |
| while tmp>0 | |
| arr << tmp%10 | |
| tmp /= 10 | |
| end | |
| arr.reverse | |
| end |
| class Array | |
| def same? | |
| uniq.length==1 | |
| end | |
| end | |
| x = 1 | |
| y = 2 | |
| z = 2 | |
| l = 2 |