Welcome to the
1st Mathematics × Programming Competition!
1st Mathematics × Programming Competition!
Question Difficulty index: 4 / 10
Difficulty index: 4 / 10
Kenchung has 90 SBD and goes to a store to buy stationery. A pencil costs 9 SBD and a pen costs 10 SBD. How many different possible combinations are there for the stationery he purchased? (Buying nothing at all is not considered as a combination) (He does not have to use all the money)
Photo source: www.matthewdeevers.com
Answer submission
- Please submit through this link.
- You are not required to show your steps. You can use either a mathematical or programming approach.
- This competition will last for 24 hours. After that no more submission would be accepted.
Rules
- Participants who submit the answer as a comment below this post will be disqualified.
- Each participant can only submit once. In case of duplicated submission, the latest answer will be considered.
- You have to upvote this post AND the announcement post in order to be eligible for the competition.
Prizes
- The final SBD payout of the previous post would be added to the prize pool. The prize pool contains 0 SBD at this moment.
- The first participant who gave the correct answer will get 75% of the prize pool.
- Other participants who got the correct answers will enter a lucky draw. Those who resteemed this post will have 400% higher chance to win! The 5 winners will share 25% of the prize pool.
- If not all prizes are given out, they will be accumulated for the next competition!
- @kenchung reserve all the rights to disqualify any suspected cheating players and decide the distribution of prize among the winner(s).
Upvote, resteem and follow me at @kenchung if you like my posts!
Maybe it is too easy for computer bruteforcing ^^"?
Does he have to use all 90 SBDs?
No. (clarified in the question, thanks for asking)
Just submitted. And upvoted.
Only have time to do it now so I probably is too late even if I got the answer correct. Anyway, I think I should still join this as I like your idea and what to show my support.
Keep this challenge going, I will join every time.
Thanks man :) nvm you can still have the chance to win the small prizes (5% of total SBD payout each) if someone has answered correctly before you
Looking forward to your participation in the upcoming challenges!
This post received a 13% upvote from @randowhale thanks to @kenchung! For more information, click here!
My answer was submited
great, thx for joining! I will announce the winners tmr
Submitted the answer.. Wish I'd seen the post earlier. :/
Follow me then you won't miss my next challenge :)
Every time I will announce the time of the next challenge 24 hours in advance first (like this one) , then you can set an alarm so that you won't miss it :p
haha, you got yourself a new follower :D
and you too! :D
I'll try to catch the most recent one and add it to the next @math-trail curated list :-)
Whoops I missread, I showed my steps, hope that isn't a problem.
nvm, a very detailed explanation btw haha ;)
Interesting way of conducting it. Will be interested to see the response rates. Good luck with it!
Thanks!
I received your answer already btw, thanks for participating :)
Ah... idiot me! It's late and did it in my head! :-D
Oh ya just realized you have submitted twice
it's fine, I will always use you latest submission, the earlier one will be discarded :)
Answer submitted :)
Great, will announce the contest result after 24 hours :)
Which post should be upvoted other than this?
oops sorry my bad, amended the post already
I mean yesterday's post
https://steemit.com/chainbb-general/@kenchung/earn-free-steem-by-joining-the-new-mathematics-x-programming-competition-2017614t215356219z
thanks :D
I will solve it when I get home, looks like a fun challenge.
Sent in my response.
Great! Hope you enjoyed this challenge
Very nice! Maybe I´ll take part in one of your contests in the future. Love it.
then just visit my blog and see my latest contest! It is coming tomorrow!!