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/** | |
* D Holbrook | |
* | |
* Code Club: PO1 | |
* | |
* (*) Define a binary tree data structure and related fundamental operations. | |
* | |
* Use whichever language features are the best fit (this will depend on the language you have selected). The following operations should be supported: | |
* | |
* Constructors |
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import java.lang.Thread | |
import scala.collection.mutable.Queue | |
import akka.actor.Uuid | |
import akka.actor.scala2ActorRef | |
import akka.actor.Actor | |
import akka.event.EventHandler | |
/* | |
* Sleeping Barber Code Club Problem | |
* See (http://en.wikipedia.org/wiki/Sleeping_barber_problem) |
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extern crate num_integer; | |
use num_integer::Integer; | |
// run at http://play.integer32.com/?gist=6e4b93f907407f67704430e60f771e1f&version=undefined | |
fn main() { | |
let e5 = euler5(); | |
assert_eq!(e5, 232792560); | |
println!("Euler5 {}", e5); | |
} |
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export PS1="\[\033[36m\]\u\[\033[m\]@\[\033[32m\]\h:\[\033[33;1m\]\w\[\033[m\]\n\$ " | |
export CLICOLOR=1 | |
export LSCOLORS=ExFxBxDxCxegedabagacad | |
if [ $ITERM_SESSION_ID ]; then | |
export PROMPT_COMMAND='echo -ne "\033];${PWD##*/}\007"; ':"$PROMPT_COMMAND"; | |
fi | |
alias ls='ls -GFh' |
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package euler | |
object Euler8 extends App { | |
val digits = | |
"""73167176531330624919225119674426574742355349194934 | |
|96983520312774506326239578318016984801869478851843 | |
|85861560789112949495459501737958331952853208805511 | |
|12540698747158523863050715693290963295227443043557 |
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package euler | |
object Euler21 extends App { | |
def properDivisors(n: Int): Seq[Int] = | |
(1 to n / 2).filter(n % _ == 0) | |
val dn = for {n <- 0 until 10000} yield properDivisors(n).sum | |
private def isAmicable(n: Int, i: Int): Boolean = |
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// Fibonacci from http://rustbyexample.com/trait/iter.html | |
struct Fibonacci { | |
curr: u32, | |
next: u32, | |
} | |
impl Iterator for Fibonacci { | |
type Item = u32; | |
fn next(&mut self) -> Option<u32> { |
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fn euler1() -> u32 { | |
// using fold() instead of sum() because of iter_arith stability | |
// "use of unstable library feature 'iter_arith': bounds recently changed (see issue #27739)" | |
(1..1000) | |
.filter(|n| n % 5 == 0 || n % 3 == 0) | |
.fold(0, |acc, n| acc + n) | |
} |
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/** | |
* D Holbrook | |
* | |
* Code Club: Sudoku solver | |
* | |
* Brute force solver | |
*/ | |
object Sudoku extends App { | |
val valid = Range(1, 10) |
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#!/usr/bin/env node | |
const s = "75\n" + | |
"95 64\n" + | |
"17 47 82\n" + | |
"18 35 87 10\n" + | |
"20 04 82 47 65\n" + | |
"19 01 23 75 03 34\n" + | |
"88 02 77 73 07 63 67\n" + | |
"99 65 04 28 06 16 70 92\n" + |
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