Daily Steem-Python Challenge #21, Win 1 Steem! by steempytutorials

View this thread on: hive.blog | peakd.com | ecency.com

programming · @steempytutorials · Feb 5 '18

$2.64

Daily Steem-Python Challenge #21, Win 1 Steem!

<center>https://cdn.discordapp.com/attachments/404587860872921088/405329216280723458/challenge.png</center>

For each tutorial we release there will be a relevant challenge where the winner receives 1 STEEM! 

### Challenge

Take the code from the tutorial from [here](https://github.com/amosbastian/steempy-tutorials/tree/master/part_21) and change it to be able to do the following

1. Determine the most optimal amount of threads for your CPU and plot this. Time each session and use this data to make a plot which shows where there is no more benefit of adding any additional threads. To keep it simple stick to a fixed block count of 1000.

That's it! Good luck to everyone participating!

### Deadline
The prize money will be rewarded to the person that solves the problem first. If there is no solution within 7 days after this post has been submitted the prize pool expires.

### Relevant Tutorial
- [Part 21: Use Multi Threading To Analyse The Steem Blockchain In Parallel](https://steemit.com/utopian-io/@steempytutorials/part-21-use-multi-threading-to-analyse-the-steem-blockchain-in-parallel)

---

If you have questions about the tutorial or the challenge then don't hesitate to comment below or contact us on [Discord](https://discord.gg/rYTV87W)!

👍 juliank, amosbastian, gregario, makerhacks, steempytutorials, oups, fisherck, cccp, palik, talhashafiq119, rahmatmirza, utzo, luj1, riad789, bloodviolet, arfah, victorshek, bjoernb, raquel.ramirezv, anomaly, andreigavajuc, musafir79, josueyjenna, macro-good, azmazm, danil87, maquemali, akmalrazi, jahidrony, golamor, zafrin, williamfarjana16, zuky93, boyhaqii, mrduo, abdullah67, sandyprasasty, saifulafwadi, prasannab, homeraakter74, kabirlec9, msytiqueblinkx, jesterlem, jhon2, schase, muhammadazzikra, syafriadi, panquekafe, nandagayo, herryc, febrisahputra04, fikarvox, raziakmal, ijunkazama, darmawan520, murizalpangeran, koaungkyawtun, graciousrecipe, rahmadsanjaya, ysmn, pro-steemit, sang-pemangsa, kilianparadise, imamw, and 23 others

`author`	steempytutorials
`permlink`	daily-steem-python-challenge-21-win-1-steem
`category`	programming
`json_metadata`	{"tags":["programming","python","contest","bot","steemdev"],"image":["https://cdn.discordapp.com/attachments/404587860872921088/405329216280723458/challenge.png"],"links":["https://github.com/amosbastian/steempy-tutorials/tree/master/part_21","https://steemit.com/utopian-io/@steempytutorials/part-21-use-multi-threading-to-analyse-the-steem-blockchain-in-parallel","https://discord.gg/rYTV87W"],"app":"steemit/0.1","format":"markdown"}
`created`	2018-02-05 05:40:06
`last_update`	2018-02-05 05:40:06
`depth`	0
`children`	10
`last_payout`	2018-02-12 05:40:06
`cashout_time`	1969-12-31 23:59:59
`total_payout_value`	2.586 HBD
`curator_payout_value`	0.050 HBD
`pending_payout_value`	0.000 HBD
`promoted`	0.000 HBD
`body_length`	1,261
`author_reputation`	31,094,047,689,691
`root_title`	"Daily Steem-Python Challenge #21, Win 1 Steem!"
`beneficiaries`	`[]`
`max_accepted_payout`	1,000,000.000 HBD
`percent_hbd`	10,000
`post_id`	35,062,275
`net_rshares`	386,596,742,247
`author_curate_reward`	""

properties (23)vote details (87)

voter	rshares	pct
marius19	0	100%
anomaly	200,977,125	1%
augistune	0	100%
melip	0	50%
iqbalzarra	0	77.53%
juliank	331,299,293,922	30%
gregario	12,846,167,366	100%
brownlady	0	100%
edyfaisal	0	100%
chitnaingoo	0	100%
arvindkumar	0	100%
michelle96	0	100%
duekie	0	100%
shadly	0	100%
utzo	605,527,536	100%
nathanedge	0	100%
non-block	0	100%
talhashafiq119	613,696,269	100%
rahmatmirza	606,802,089	100%
platin01	0	100%
shintamonica	0	100%
makerhacks	10,908,574,960	20%
fidel66	0	100%
munazirpuwan	0	100%
riad789	567,548,504	100%
amosbastian	15,883,466,426	100%
auliyatullah	0	100%
oups	3,018,534,661	100%
fisherck	1,464,541,325	100%
platomaniac	0	100%
arfah	552,311,567	100%
steempytutorials	4,435,356,348	100%
raquel.ramirezv	225,592,808	100%
palik	613,964,701	100%
priyalath5	0	100%
victorshek	435,708,515	100%
alfiannurmedia	0	100%
rahmed	0	100%
madimancity	0	100%
luj1	567,890,469	100%
imamw	0	100%
kilianparadise	0	100%
bjoernb	426,675,836	100%
sang-pemangsa	0	100%
bloodviolet	564,587,711	100%
pro-steemit	0	100%
ysmn	0	100%
rahmadsanjaya	0	100%
graciousrecipe	0	100%
koaungkyawtun	0	100%
murizalpangeran	0	100%
cccp	615,000,126	100%
darmawan520	0	0%
ijunkazama	0	100%
raziakmal	0	100%
fikarvox	0	100%
andreigavajuc	89,097,230	100%
febrisahputra04	0	100%
herryc	0	100%
nandagayo	0	100%
panquekafe	0	100%
syafriadi	0	100%
musafir79	55,426,753	100%
muhammadazzikra	0	100%
schase	0	100%
jhon2	0	100%
jesterlem	0	100%
msytiqueblinkx	0	100%
kabirlec9	0	100%
homeraakter74	0	100%
prasannab	0	100%
saifulafwadi	0	100%
sandyprasasty	0	100%
abdullah67	0	100%
mrduo	0	100%
boyhaqii	0	100%
zuky93	0	100%
williamfarjana16	0	100%
zafrin	0	100%
golamor	0	100%
jahidrony	0	100%
akmalrazi	0	100%
maquemali	0	100%
danil87	0	100%
azmazm	0	100%
macro-good	0	100%
josueyjenna	0	100%

@cccp · Feb 7 '18

[Here's](https://pastebin.com/spSBtW15) my solution

I've assumed that the number of threads is optimal, when the addition of a new one improves the execution time of the algorithm by less than 5%. you can change this value by modifying STOP_CONDITION variable. 

I've also changed `head_block = blockchain.get_current_block_num()-int(sys.argv[1])` to `head_block 		= blockchain.get_current_block_num()`, which I believe is correct

properties (22)

`author`	cccp
`permlink`	re-steempytutorials-daily-steem-python-challenge-21-win-1-steem-20180207t183104297z
`category`	programming
`json_metadata`	{"tags":["programming"],"links":["https://pastebin.com/spSBtW15"],"app":"steemit/0.1"}
`created`	2018-02-07 18:31:06
`last_update`	2018-02-07 18:31:06
`depth`	1
`children`	1
`last_payout`	2018-02-14 18:31:06
`cashout_time`	1969-12-31 23:59:59
`total_payout_value`	0.000 HBD
`curator_payout_value`	0.000 HBD
`pending_payout_value`	0.000 HBD
`promoted`	0.000 HBD
`body_length`	431
`author_reputation`	0
`root_title`	"Daily Steem-Python Challenge #21, Win 1 Steem!"
`beneficiaries`	`[]`
`max_accepted_payout`	1,000,000.000 HBD
`percent_hbd`	10,000
`post_id`	35,722,230
`net_rshares`	0

@komail · Feb 14 '18 (edited)

I really very excited for it 
I already learn python very easy language obviously it is a high level language which is easy for human
I am ready

properties (22)

`author`	komail
`permlink`	re-cccp-re-steempytutorials-daily-steem-python-challenge-21-win-1-steem-20180214t190255374z
`category`	programming
`json_metadata`	{"tags":["programming"],"app":"steemit/0.1"}
`created`	2018-02-14 19:03:00
`last_update`	2018-02-14 19:03:45
`depth`	2
`children`	0
`last_payout`	2018-02-21 19:03:00
`cashout_time`	1969-12-31 23:59:59
`total_payout_value`	0.000 HBD
`curator_payout_value`	0.000 HBD
`pending_payout_value`	0.000 HBD
`promoted`	0.000 HBD
`body_length`	144
`author_reputation`	6,633,855,647
`root_title`	"Daily Steem-Python Challenge #21, Win 1 Steem!"
`beneficiaries`	`[]`
`max_accepted_payout`	1,000,000.000 HBD
`percent_hbd`	10,000
`post_id`	37,550,277
`net_rshares`	0

@daveiano · Feb 21 '18 (edited)

How would I share my solution? Paste the relevant code as a comment?

properties (22)

`author`	daveiano
`permlink`	re-steempytutorials-daily-steem-python-challenge-21-win-1-steem-20180221t093636090z
`category`	programming
`json_metadata`	{"tags":["programming"],"app":"steemit/0.1"}
`created`	2018-02-21 09:36:36
`last_update`	2018-02-21 09:36:54
`depth`	1
`children`	0
`last_payout`	2018-02-28 09:36:36
`cashout_time`	1969-12-31 23:59:59
`total_payout_value`	0.000 HBD
`curator_payout_value`	0.000 HBD
`pending_payout_value`	0.000 HBD
`promoted`	0.000 HBD
`body_length`	68
`author_reputation`	4,366,297,315
`root_title`	"Daily Steem-Python Challenge #21, Win 1 Steem!"
`beneficiaries`	`[]`
`max_accepted_payout`	1,000,000.000 HBD
`percent_hbd`	10,000
`post_id`	39,302,709
`net_rshares`	0

@drowkeudrow · Feb 7 '18 (edited)

Tutorial yang bagus @  steempytutorials

properties (22)

`author`	drowkeudrow
`permlink`	re-steempytutorials-daily-steem-python-challenge-21-win-1-steem-20180207t154040933z
`category`	programming
`json_metadata`	{"tags":["programming"],"app":"steemit/0.1"}
`created`	2018-02-07 15:40:45
`last_update`	2018-02-07 15:42:21
`depth`	1
`children`	0
`last_payout`	2018-02-14 15:40:45
`cashout_time`	1969-12-31 23:59:59
`total_payout_value`	0.000 HBD
`curator_payout_value`	0.000 HBD
`pending_payout_value`	0.000 HBD
`promoted`	0.000 HBD
`body_length`	39
`author_reputation`	3,109,901,127,459
`root_title`	"Daily Steem-Python Challenge #21, Win 1 Steem!"
`beneficiaries`	`[]`
`max_accepted_payout`	1,000,000.000 HBD
`percent_hbd`	10,000
`post_id`	35,690,013
`net_rshares`	0

@graciousrecipe · Mar 13 '18

Excellent information. Thanks alot.

properties (22)

`author`	graciousrecipe
`permlink`	re-steempytutorials-daily-steem-python-challenge-21-win-1-steem-20180313t090807681z
`category`	programming
`json_metadata`	{"tags":["programming"],"app":"steemit/0.1"}
`created`	2018-03-13 09:08:21
`last_update`	2018-03-13 09:08:21
`depth`	1
`children`	0
`last_payout`	2018-03-20 09:08:21
`cashout_time`	1969-12-31 23:59:59
`total_payout_value`	0.000 HBD
`curator_payout_value`	0.000 HBD
`pending_payout_value`	0.000 HBD
`promoted`	0.000 HBD
`body_length`	35
`author_reputation`	-602,091,313,971
`root_title`	"Daily Steem-Python Challenge #21, Win 1 Steem!"
`beneficiaries`	`[]`
`max_accepted_payout`	1,000,000.000 HBD
`percent_hbd`	10,000
`post_id`	44,096,974
`net_rshares`	0

@muhammadazzikra · Mar 6 '18

THANK YOU FOR THIS INCREDIBLE INFORMATION

properties (22)

`author`	muhammadazzikra
`permlink`	re-steempytutorials-daily-steem-python-challenge-21-win-1-steem-20180306t202616587z
`category`	programming
`json_metadata`	{"tags":["programming"],"app":"steemit/0.1"}
`created`	2018-03-06 20:26:21
`last_update`	2018-03-06 20:26:21
`depth`	1
`children`	0
`last_payout`	2018-03-13 20:26:21
`cashout_time`	1969-12-31 23:59:59
`total_payout_value`	0.000 HBD
`curator_payout_value`	0.000 HBD
`pending_payout_value`	0.000 HBD
`promoted`	0.000 HBD
`body_length`	41
`author_reputation`	319,634,092,040
`root_title`	"Daily Steem-Python Challenge #21, Win 1 Steem!"
`beneficiaries`	`[]`
`max_accepted_payout`	1,000,000.000 HBD
`percent_hbd`	10,000
`post_id`	42,703,880
`net_rshares`	0

@paulasepistle · Mar 27 '18

where to submit the solution?

properties (22)

`author`	paulasepistle
`permlink`	re-steempytutorials-daily-steem-python-challenge-21-win-1-steem-20180327t113330377z
`category`	programming
`json_metadata`	{"tags":["programming"],"app":"steemit/0.1"}
`created`	2018-03-27 11:33:30
`last_update`	2018-03-27 11:33:30
`depth`	1
`children`	0
`last_payout`	2018-04-03 11:33:30
`cashout_time`	1969-12-31 23:59:59
`total_payout_value`	0.000 HBD
`curator_payout_value`	0.000 HBD
`pending_payout_value`	0.000 HBD
`promoted`	0.000 HBD
`body_length`	29
`author_reputation`	8,402,037,074
`root_title`	"Daily Steem-Python Challenge #21, Win 1 Steem!"
`beneficiaries`	`[]`
`max_accepted_payout`	1,000,000.000 HBD
`percent_hbd`	10,000
`post_id`	46,878,264
`net_rshares`	0

@rahmadsanjaya · Feb 17 '18

siplah pokoknya

👍 lorner

`author`	rahmadsanjaya
`permlink`	re-steempytutorials-daily-steem-python-challenge-21-win-1-steem-20180217t163528534z
`category`	programming
`json_metadata`	{"tags":["programming"],"app":"steemit/0.1"}
`created`	2018-02-17 16:35:39
`last_update`	2018-02-17 16:35:39
`depth`	1
`children`	0
`last_payout`	2018-02-24 16:35:39
`cashout_time`	1969-12-31 23:59:59
`total_payout_value`	0.000 HBD
`curator_payout_value`	0.000 HBD
`pending_payout_value`	0.000 HBD
`promoted`	0.000 HBD
`body_length`	15
`author_reputation`	156,085,468,790
`root_title`	"Daily Steem-Python Challenge #21, Win 1 Steem!"
`beneficiaries`	`[]`
`max_accepted_payout`	1,000,000.000 HBD
`percent_hbd`	10,000
`post_id`	38,296,167
`net_rshares`	0
`author_curate_reward`	""

properties (23)vote details (1)

voter	weight	wgt%	rshares	pct	time
lorner	0 B		0	100%

@shirishpaudel · Feb 16 '18

https://steemit.com/smartphonephotography/@shirishpaudel/beautiful-flower-50c0af8c34f74

properties (22)

`author`	shirishpaudel
`permlink`	re-steempytutorials-daily-steem-python-challenge-21-win-1-steem-20180216t065625438z
`category`	programming
`json_metadata`	{"tags":["programming"],"links":["https://steemit.com/smartphonephotography/@shirishpaudel/beautiful-flower-50c0af8c34f74"],"app":"steemit/0.1"}
`created`	2018-02-16 06:56:33
`last_update`	2018-02-16 06:56:33
`depth`	1
`children`	0
`last_payout`	2018-02-23 06:56:33
`cashout_time`	1969-12-31 23:59:59
`total_payout_value`	0.000 HBD
`curator_payout_value`	0.000 HBD
`pending_payout_value`	0.000 HBD
`promoted`	0.000 HBD
`body_length`	87
`author_reputation`	4,996,979,925
`root_title`	"Daily Steem-Python Challenge #21, Win 1 Steem!"
`beneficiaries`	`[]`
`max_accepted_payout`	1,000,000.000 HBD
`percent_hbd`	10,000
`post_id`	37,933,573
`net_rshares`	0

@tiboine · Apr 28 '18

dead?

properties (22)

`author`	tiboine
`permlink`	re-steempytutorials-daily-steem-python-challenge-21-win-1-steem-20180428t152650687z
`category`	programming
`json_metadata`	{"tags":["programming"],"app":"steemit/0.1"}
`created`	2018-04-28 15:26:51
`last_update`	2018-04-28 15:26:51
`depth`	1
`children`	0
`last_payout`	2018-05-05 15:26:51
`cashout_time`	1969-12-31 23:59:59
`total_payout_value`	0.000 HBD
`curator_payout_value`	0.000 HBD
`pending_payout_value`	0.000 HBD
`promoted`	0.000 HBD
`body_length`	5
`author_reputation`	2,110,692,062
`root_title`	"Daily Steem-Python Challenge #21, Win 1 Steem!"
`beneficiaries`	`[]`
`max_accepted_payout`	1,000,000.000 HBD
`percent_hbd`	10,000
`post_id`	52,662,714
`net_rshares`	0