[Tutor] Finding the max value from a dictionary that does not exceed a variable's value.

[srinivas devaki]

On Sun, Jan 31, 2016 at 3:54 AM, Danny Yoo <dyoo at hashcollision.org> wrote:
> ---
> I want to take the max value in the dictionary 'coinvalues'  that is the
> same as or lower than the variable 'change'.  I have no idea how to search
> through the 'coinvalues' dictionary and find the value that is highest but
> does not exceed the value held in the variable 'change'.
> ---

although OP's problem doesn't need this, is there a better way achieve
this other than
using a balanced binary search tree.