[Past Event] Three-Body Tech - SoundBytes - Heavier7Strings Giveaway

[admin]

[This is a past event. Stay tuned for more!]

We are pleased to announce we teamed up with SoundBytes Magazine to bring you Heavier7Strings giveaway!
Simply register at our forum and post below to enter, 3 random winners will be randomly selected to receive a copy of Heavier7Strings.
Winners will be annoounced here on Dec 25th (Beijing Time) and SoundBytes offical site.

PLEASE NOTE: One entry per user ONLY. We are able to detect multiple entries.

If you do not received forum account activation email, please check your spam folder in your mailbox; and if it is still not there, please contact us using your email address used in forum registration. Our email: support@threebodytech.com



The result is here! Our 3 lucky winners are: iScream, tommygunster, TrojakEW.
Congratulations and enjoy H7S! The serial number has been sent to your email.

We used MT19937 pseudo random number generator, and used the Epoch second number on time 2017-12-25 00:00.00 as seed.
The winners are generated from following procedure:
1: a random number between 2 and the number of participants is generated, it is used as the times of shuffling.
2: each participant is assigned with an ID according to their reply in the activity post. Duplicate ones are removed.
3: shuffling is performed by previously decided times, the first 3 IDs in resultant shuffled list are selected as winner.
The shuffling and random generator in C++11 standard library was used. The source code was compiled by GCC 6.3.0.

See blow for source code:

#include <algorithm>
#include <iostream>
#include <random>
#include <vector>

#define ACTION_DATE_EPOCH 1514160000
#define NUM_FETCH 3

int main()
{
std::vector<int> indices = {
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12,
13,
14,
15,
16,
17,
18,
19,
20,
21,
22,
23,
24,
25,
26,
27,
28,
29,


32,
33,
34,
35,
36,
37,
38,
39,
40,
41,
42,
43,
};

// create pseudo random number generator
// initialize using the second number since Epoch of this Christmas
std::mt19937 prng;
prng.seed(ACTION_DATE_EPOCH);

// decide how many times to shuffle
// the number must be at least 2, otherwise the result has fixed prefix
std::uniform_int_distribution<int> dist(2, indices.size());
int times_shuffle = dist(prng);
std::cout << "shuffle " << times_shuffle << " times" << std::endl;

// do shuffle for that times
for (int i = 0; i < times_shuffle; i++)
std::shuffle(indices.begin(), indices.end(), prng);

// tell result
for (int i = 0; i < NUM_FETCH; i++)
{
std::cout << indices[i] << std::endl;
}
}


Merry Christmas and Happy New Year!

[GaryB]

Is One in?

[JustGettingBy]

Posting to win.

[MusicTobi]

I would like to win

[rosesbyrosex]

A Winner Here too¡¡¡

[mrostaing]

yes !!!!!!http://forums.threebodytech.com/posting.php?f=14&mode=reply&t=79&sid=d041325dd915ad56aa7a5f724259e880#

[Voltago]

Thank you for this opportunity!

[friley64]

All I want for Christmas!

[Burnt321]

Very cool of you guys! Thanks for the giveaway!!

[DH-T-BTF]

I'm in it to win it