Challenge :: The twelve days of Christmas

Question

"On the first day of Christmas
my True Love sent to me:
A Partridge in a Pear Tree
On the second day of Christmas
my True Love sent to me:
Two Turtle Doves
and a Partridge in a Pear Tree..."
Last Christmas John has received many gifts from his True Love. But his home is running out of space because of some doves and pipers. This year he can only accept a certain number of presents. Calculate the number of days for which John can receive presents.
Input:
The number of presents John can accept.
Output:
"John can receive presents for <solution> day(s)."
Examples (but feel free to implement more creative solutions):
Input: 1
Output: John can receive presents for 1 day(s).
Input: 10
Output: John can receive presents for 3 day(s).
Input: 100
Output: John can receive presents for 8 day(s).
Input: 1000
Output: John can receive presents for 12 day(s).
Further read:
https://en.wikipedia.org/wiki/The_Twelve_Days_of_Christmas_(song)

Answer 1

Ok, got it :)
https://code.sololearn.com/crn904kvaseE/?ref=app
EDIT: Changed it a bit... 🎄🎁

Answer 2

So to be perfectly clear - on the first day it's just a partridge, on the second day it's two turtle doves, a partridge and the partridge from the other day and so on incrementally?
1: 1
2: 1 + (2 + 1) = 4
3: 1 + (2 + 1) + (3 + 2 +1) = 10
.
.
?

Answer 3

here it is... 🐍
I think in the Challenge description there is a typo: if input is 1000 the output should be 18, not 12...
https://code.sololearn.com/cH1xZyad4bcK/?ref=app

Answer 4

Hahahaha....true love!!!...hahahaha

Answer 5

here u go...
https://code.sololearn.com/coz9U0k0lydB/?ref=app

Answer 6

@Kuba: Yes, exactly :)

Answer 7

@m abrate: If John kept receiving presents after the 12th day then yes, 18 would be the answer. But his True Love can afford to buy presents only for 12 days :)