sontuphan

pragma solidity ^0.4.17;

contract PoL {

    // Declare variables, structures, mapping functions, events
    struct pol {
        address receiver;
        uint initialBlockNumber;
        uint deposit;
    }

sontuphan

function recoverBalance(address _owner)
    public
    payable
{
    require(msg.value > 0);
    require(!existedPoL(_owner));

    address _receiver = msg.sender;
    getPoL[_owner].receiver = _receiver;
    getPoL[_owner].initialBlockNumber = block.number;

sontuphan

function rejectPoL()
    public
{
    address _owner = msg.sender;
    require(existedPoL(_owner));
    uint _value = getPoL[_owner].deposit;
    bool _success = _owner.send(_value);

    if (_success) {
        getPoL[_owner].receiver = address(0);

sontuphan

function() payable {
    address _owner = msg.sender;
    uint _value = msg.value;

    require(_value > 0);
    require(isValidPoL(_owner));

    bool _success = approvePoL(_owner, _value);

    if (_success) {

sontuphan

function approvePoL(address _owner, uint _value)
    private
    returns (bool)
{
    address _receiver = getPoL[_owner].receiver;
    bool _success = _receiver.send(_value);
    return _success;
}  

sontuphan

// Hash algorithm is Keccak256
// The raw values are 'rock', 'scissors' and 'paper'

var hashOfRock = '10977e4d68108d418408bc9310b60fc6d0a750c63ccef42cfb0ead23ab73d102';
var hashOfScissors = '389a2d4e358d901bfdf22245f32b4b0a401cc16a4b92155a2ee5da98273dad9a';
var hashOfPaper = 'ea923ca2cdda6b54f4fb2bf6a063e5a59a6369ca4c4ae2c4ce02a147b3036a21';

sontuphan

// Hash algorithm is Keccak256

var s = Math.floor((Math.random() * 1000000000) + 1); // s = 830178382
var selection = ‘rock’;
var combination = selection + s; // combination = ‘rock830178382’
var hashOfCombination = keccak256(combination);
// hashOfCombination = 4d49bb261ecb887e152051da601d028e070635d24da07da2828fca8fecedee50

sontuphan

Root: {1: 'Dog', 2: B, 3: A}
A: {1: C, 2: D, 3: 'Cat'}
B: {1: 'Goat', 2: 'Bear', 3: 'Rat'}
C: {1: 'Eagle', 2: 'Parrot', 3: E}
D: {1: 'Shark', 2: 'Dolphin', 3: 'Whale'}
E: {1: 'Duck', 2: 'Chinken', 3: 'Pig'}

sontuphan

node type    path length    |    prefix    hexchar
--------------------------------------------------
extension    even           |    0000      0x0
extension    odd            |    0001      0x1
leaf         even           |    0010      0x2
leaf         odd            |    0011      0x3

sontuphan

> [ 1, 2, 3, 4, 5]
'11 23 45'
> [ 0, 1, 2, 3, 4, 5]
'00 01 23 45'
> [ 0, f, 1, c, b, 8, 16]
'20 0f 1c b8'
> [ f, 1, c, b, 8, 16]
'3f 1c b8'