Vaibhav Yenamandra envp
envp
/ lastdig.c
Created
June 20, 2013 08:36
SPOJ Problem Set (classical)
3442. The last digit
Problem code: LASTDIG
http://www.spoj.com/problems/LASTDIG/
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| #include <stdio.h> | |
| #include <math.h> | |
| int main() { | |
| int t, a, b, b2, b4, s, p; | |
| scanf("%d", &t); | |
| typedef double d; | |
| while(t--) { | |
| scanf("%d %d", &a, &b); | |
| a %= 10; | |
| b2 = (b>2)?b%2:b; |
envp
/ crazyb0y_brainfck.in
Created
November 13, 2013 17:56
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| --->->>->++++++++++++++++++++++++++++>++>-->+>++ | |
| +++++>++>-->++++++++++++++++++>+++++++>+++++++++ | |
| ++++++++++++>-->++++++++>+++++++++>++++++++++>++++++++>+++++ | |
| +>++++++++++++>++++++>+>+++++++>++++++++++>+++++>-->++++++++ | |
| +>++++++>++>->++++++++++++>++>+++++++++++++>-->++++++++>>+++ | |
| ++++++++++>-->++++++++++++++>>+++++++++++>+>+++++++++ |
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| require 'rubygems' | |
| require 'nokogiri' | |
| require 'open-uri' | |
| require 'net/http' | |
| class NokoLinkSet < Nokogiri::XML::NodeSet | |
| # Create new LinkSet object from the url and the selector | |
| def initialize(url, selector) | |
| if not ( url.nil? and selector.nil? ) | |
| @raw_html = open(url) |
envp
/ ruby_c_ext.txt
Created
April 2, 2014 23:47
— forked from schacon/ruby_c_ext.txt
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| README.ext | |
| http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/tags/v1_8_6/README.EXT?revision=12055 | |
| Extending Ruby - Pickaxe | |
| http://ruby-doc.org/docs/ProgrammingRuby/html/ext_ruby.html | |
| Extending Ruby on O'Reilly | |
| http://onlamp.com/pub/a/onlamp/2004/11/18/extending_ruby.html | |
| Ruby C Extensions - Mark Volkman |
envp
/ capybara cheat sheet
Created
June 26, 2014 16:55
— forked from zhengjia/capybara cheat sheet
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| =Navigating= | |
| visit('/projects') | |
| visit(post_comments_path(post)) | |
| =Clicking links and buttons= | |
| click_link('id-of-link') | |
| click_link('Link Text') | |
| click_button('Save') | |
| click('Link Text') # Click either a link or a button | |
| click('Button Value') |
envp
/ buggy_breakout.c
Created
April 15, 2015 18:55
This works but has a lot of stability issues and this wierd issue: http://a.pomf.se/sfpubq.gif
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| // | |
| // breakout.c | |
| // | |
| // Computer Science 50 | |
| // Problem Set 3 | |
| // | |
| // standard libraries | |
| #define _XOPEN_SOURCE | |
| #include <stdio.h> |
envp
/ linear_equation_solver.rb
Last active
December 23, 2015 06:38
A ridiculously simplified linear equation parser + sovler for systems of them, whipped up at work
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| require 'matrix' | |
| module NumericUnicodeSubscripts | |
| UNICODE_SUBSCRIPTS_0_TO_9 = [ | |
| "\u2080", | |
| "\u2081", | |
| "\u2082", | |
| "\u2083", | |
| "\u2084", | |
| "\u2085", |
envp
/ rspec_failures
Last active
January 19, 2016 17:16
Test failures for https://github.com/SciRuby/distribution/pull/30
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| Pending: (Failures listed here are expected and do not affect your suite's status) | |
| 1) Distribution::Uniform singleton it should behave like uniform engine .rng should generate sequences with the right mean & variance | |
| # This method is very innacurrate due to the low convergence rate | |
| # ./spec/uniform_spec.rb:8 | |
| 2) Distribution::Uniform Distribution::Uniform::Ruby_ it should behave like uniform engine .rng should generate sequences with the right mean & variance | |
| # This method is very innacurrate due to the low convergence rate | |
| # ./spec/uniform_spec.rb:8 |
envp
/ goodnes_of_fit.rb
Last active
January 20, 2016 10:44
Untested stuff. Does chi-squared tests. Has a lot of ad-hack stuff. This implements a pearson's chi squared test. Others to follow soon
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| module GoodnessOfFit | |
| # All goodness of fit helpers go here | |
| ## Pearson's chi squared test for goodness of fit | |
| # == References | |
| # * http://stattrek.com/chi-square-test/goodness-of-fit.aspx?Tutorial=AP | |
| # * https://en.wikipedia.org/wiki/Degrees_of_freedom_(statistics)#Residuals | |
| # | |
| # The null hypothesis is always that the +candidate+ does belong to | |
| # the +target+ distribution. |
envp
/ rb_rand_entropy.rb
Last active
January 25, 2016 06:05
Finding the entropy for Ruby's random method as a measure of it's randomness
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| def rb_rand_entropy(num_trials) | |
| a = Array.new(num_trials) {rand(100)} | |
| p = [] | |
| 0.upto(99) do |i| | |
| p[i] = a.count(i) / num_trials.to_f | |
| end | |
| return p.map {|c| -c * Math.log(c)}.reduce(:+) | |
| end |
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