Angelo Capilleri acapilleri
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| def get_perm str | |
| return [str] if str.size == 1 | |
| perms = [] | |
| first_char = str.slice!(0) | |
| words = get_perm(str) | |
| words.each do |word| | |
| perms += insert_each(first_char, word) | |
| end | |
| perms |
acapilleri
/ ruby-mergesort.rb
Last active
August 29, 2015 14:26
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| def mergesort(ary) | |
| return ary if ary.count <= 1 | |
| size = ary.count | |
| m = size / 2 | |
| merge mergesort(ary[0..m-1]), mergesort(ary[m..size-1]) | |
| end | |
| def merge(a, b) | |
| return a if b.count <= 0 | |
| return b if a.count <= 0 |
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| def quicksort(ary) | |
| size = ary.count | |
| return ary if size <= 1 | |
| i, j = 0, size - 1 | |
| pivot = ary[(size / 2)] | |
| while i < j | |
| i += 1 while ary[i] < pivot | |
| j -= 1 while ary[j] > pivot | |
| ary[i], ary[j] = ary[j], ary[i] |
acapilleri
/ gist:6898533
Last active
December 25, 2015 01:49
Rails App ruby 2.1 MRI vs Rubinius 2.0
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| Server: | |
| iMac | |
| Mac10,1 | |
| Intel Core 2 Duo | |
| 3,06 GHz | |
| Cache L2: 3 MB | |
| RAM: 8 GB | |
| bus: 1,07 GHz |
acapilleri
/ gist:6182210
Last active
December 20, 2015 19:19
Generate PDF with wkhtmltopdf without any required gems. In this case I use rails, but it's flexible for any ruby frameworks or just for simply ruby app
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| def show | |
| @pet = Pet.find(params[:id]) | |
| tempfile = Tempfile.new(@pet.id.to_s) | |
| render_file = Tempfile.new(@pet.id.to_s + '.html') | |
| buffer = render 'show.pdf.erb', layout: false | |
| render_file.write(buffer.first) | |
| html = "#{render_file.path}.html" | |
| system "mv #{render_file.path} #{html} && wkhtmltopdf #{html} #{tempfile.path}" | |
| send_file tempfile.path, type: 'application/pdf' |