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set $mobile_rewrite do_not_perform; | |
if ($http_user_agent ~* "(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|ipad|android|sch-i800|playbook|tablet|kindle|gt-p1000|sgh-t849|shw-m180s|a510|a511|a100|dell streak|silk|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino") { | |
set $mobile_rewrite perform; | |
} | |
if ($http_user_agent ~* "^(1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p| |
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class PriorityQueue | |
attr_reader :elements | |
def initialize | |
@elements = [nil] | |
end | |
def <<(element) | |
@elements << element | |
bubble_up(@elements.size - 1) |
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$ ruby unique-unordered-pairing-function.rb | |
Cantor Pairing Function | |
----------------------- | |
<x, y> = (x + y) * (x + y + 1) / 2 + y | |
0 1 2 3 4 5 6 7 8 9 10 11 12 13 | |
+ ——— + ——— + ——— + ——— + ——— + ——— + ——— + ——— + ——— + ——— + ——— + ——— + ——— + ——— + | |
0 | 0 | 1 | 3 | 6 | 10 | 15 | 21 | 28 | 36 | 45 | 55 | 66 | 78 | 91 | |