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// javac Lychrel.java && java Lychrel | |
import java.math.BigInteger; | |
public class Lychrel { | |
public static BigInteger reverse(BigInteger n) { | |
String str = new StringBuilder(n.toString()).reverse().toString(); | |
return new BigInteger(str); | |
} |
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$grid = Array.new(10, "X").map { |r| Array.new(10, "X") } | |
def $grid.print | |
puts map(&:join) | |
end | |
def $grid.draw(row, col, size: 2) | |
bounds = $grid.length | |
fail "out of bounds #{row}+#{size} > #{bounds}" if row+size > bounds | |
shape = ' ' |
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class Book | |
include Neo4j::ActiveNode | |
property :title | |
has_many :in, :spaces, rel_class: :BookAuthor | |
end | |
class Author | |
include Neo4j::ActiveNode |
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(defun jm/yeller () | |
(interactive) | |
(set-background-color "#FFFFDD")) | |
(defun jm/minty () | |
(interactive) | |
(set-background-color "#F0FFF0")) |
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def foo(arg1:, arg2: :foo) | |
puts "arg1 = %s, arg2 = %s" % [arg1, arg2] | |
end | |
foo(arg1: "HI") | |
foo(arg1: "HI", arg2: "MOM") | |
foo(**{arg1: "HI", arg2: "MOM"}) |
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module StringStripper | |
def strip(*keys) | |
before_validation do | |
keys.each do |k| | |
self[k] = self[k].to_s.gsub(/[[:space:]]/, '') if self[k].present? | |
end | |
end | |
end | |
end |
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class Book | |
include Neo4j::ActiveNode | |
property :title | |
has_many :in, :spaces, rel_class: :BookAuthor | |
end | |
class Author | |
include Neo4j::ActiveNode |
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(defun make-password () | |
(interactive) | |
(let* ((cmd "egrep '{6,}' /usr/share/dict/words | shuf -n 4 | tr \"\\n\" ' '") | |
(pass (replace-regexp-in-string " $" "" (shell-command-to-string cmd)))) | |
(message pass) | |
(kill-new pass))) |
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#! /bin/sh | |
echo "$0 [FILE] -- print a message to STDOUT or FILE" >&2 | |
if [ -z $1 ]; then | |
exec 3>&1 # stdout | |
else | |
exec 3>"$1" # file | |
fi |
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let sum lst = | |
let rec aux acc rest = match rest with | |
| [] -> acc | |
| x::xs -> aux (x+acc) xs in | |
aux 0 lst;; | |
sum [3;1;4;1;5;9];; | |
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