Hello
I’m attempting this problem(Code: COINS). This is my solution: CodeChef: Practical coding for everyone
Can anyone tell me what I am doing wrong?
My logic is: if the sum of n/2+n/3+n/4 is bigger than n, then substitute n by that sum, otherwise, print n.
How many maximum coins can you get for n=24?
I can get 27.
You exchange 24 for 12+8+6=26.
Then you exchange the 12 coin for a 13 coin.
Think about it.
Let’s say your answer is given by f(n).
Then,
f(n)=f(\frac{n}{2})+f(\frac{n}{3})+f(\frac{n}{4})
Thanks, I understand my mistake now. 