manuel-sugawara

/**
 * Returns {@code true} if the node is the root of a vaild binary
 * search tree.
 */
public static boolean isBinarySearchTree(Node<T extends Comparable> node) {
    if (node == null) {
        return true;
    }

    if (node.left == null && node.right == null) {

manuel-sugawara

    /**
     * Removes the list's nth from last element.
     */
    public void removeNthFromLast(List list, int n) {
        Node ahead = list.head;
        for (int x = 0; x < n; x++) {
            if (ahead.next == null) {
                return null;
            }
            ahead = ahead.next;

manuel-sugawara

    /**
     * Given two nodes and the root of a tree find their lowest
     * common ancestor.
     */
    public Node findLowestCommonAncestor(Node root, Node a, Node b) {
        // If either a or b are the root, then the root is the lowest common ancestor.
        if (a == root || b == root) {
            // Not sure if this is a correct answer. It depends on
            // whether you allow a node to be ancestor of itself or
            // not. If the former the answer is correct, else null

manuel-sugawara

letme-get-help-for-that() {
    cmd=$@
    IFS=:
    for x in `echo "$ ${cmd} --help" | perl -p -e 's/(.)/$1:/g'`; do printf "%s" "$x"; sleep 0.5; done
    for ((y=0;y<6;y++)); do sleep 0.5; echo -n "\b"; done ; 
    tput smul; tput bold; 
    for x in `echo "--help" | perl -p -e 's/(.)/$1:/g'`; do sleep 0.5; printf "%s" "$x"; done;
    tput rmul; tput sgr0; 
    echo "" 
    $cmd --help

manuel-sugawara

#!/bin/bash

tput civis
while true; do
    style=`cowsay -l | grep -v /usr/local | perl -p -e 's/ /\n/g' | egrep -v '(telebears|head-in|sodomized)' | gsort -R | head -1`
    cookie=`mktemp`
    fortune > $cookie
    for x in `seq 5`; do
        clear
        cat $cookie | cowsay -f $style | lolcat;