stingh711

(defn gcd
  [a b]
  (if (zero? b)
    a
    (gcd b (rem a b))))

(reduce (fn [a b] (/ (* a b) (gcd a b))) (range 1 21))

stingh711

(defn reverse-str
  [s]
  (apply str (reverse s)))

(defn palindromic?
  [n]
  (let [s (str n)]
    (= (reverse-str s) s)))

(apply max (filter palindromic? (for [x (range 100 1000) y (range 100 1000)] (* x y))))

stingh711

object Issue5 {
  def gcd(a: Long, b: Long): Long = {
    if (b == 0) a else gcd(b, a % b)
  }

  def lcm(a: Long, b: Long) = {
    a * b / (gcd(a, b))
  }

  def smallestLcm(l: List[Long]) = {

stingh711

object Issue4 {
  val MIN = 100
  val MAX = 999

  def isPalindromic(n: Int) = {
    val s = n.toString
    s == s.reverse
  }

  def maxPalindromic() = {

stingh711

import java.lang.Math

object Issue3 {
  def isPrime(n: Long) = {
    if (n <= 1) false
    else if (n == 2) true
    else if (n % 2 == 0) false
    else {
      val max = Math.sqrt(n).toInt
      !3.to(max, 2).exists(n % _ == 0)

stingh711

<?xml version="1.0"?>
<settings>
	<mirrors>
		<mirror>
			<id>nexus</id>
			<url>http://172.25.21.93:8081/nexus/content/groups/public</url>
			<mirrorOf>*</mirrorOf>
		</mirror>
		<mirror>
			<id>Midas-snapshot</id>

stingh711

#!/bin/bash
#attach the EBS to /dev/sdf before running it

#format EBS
mkfs -t ext4 /dev/xvdf

#copy original /var to /dev/xvdf
mkdir /mnt/new
mount /dev/xvdf /mnt/new
cd /var

stingh711

class OnlyFullGc {
    private static final int _1M = 1024 * 1024;

    //java -verbose:gc -XX:+PrintGCDetails -XX:PretenureSizeThreshold=3145728 -Xms20M -Xmx20M -Xmn10M OnlyFullGc
    //1
    //2
    //[GC [Tenured: 9216K->4237K(10240K), 0.0110910 secs] 9543K->4237K(19456K), [Perm : 91K->91K(12288K)], 0.0113940 secs] [Times: user=0.01 sys=0.00, real=0.01 secs] 
    //3
    //Heap

stingh711

private static final int _1M = 1024 * 1024;

/**
* Test with -verbose:gc -XX:+PrintGCDetails -Xms20M -Xmx20M -Xmn10M -XX:MaxTenuringThreshold=1
*/
public static void testMaxTenuringThreshold() {

    byte[] a1, a2, a3;
    a1 = new byte[_1M / 4];
    System.out.println(1);

stingh711

private static final int _1M = 1024 * 1024;

/**
 * Test with -verbose:gc -XX:+PrintGCDetails -Xms20M -Xmx20M -Xmn10M
*/
public void testMinorGc() {
    byte[] a1, a2, a3, a4;
    a1 = new byte[_1MG / 2];
    System.out.println(1);
    a2 = new byte[3 * _1MG];