Algodoo

Imagine a world where you only needed 2 coins for every possible purchase between $0.01 and $1.00
But... there's sixteen coins. Yikey Wikeys! This scene shows how to do it with 16 distinct coins. (Appreciate that I figured out the solutions without looking Anything up but the coin values
It is even possible to make a purchase of any size between free and a dollar with one coin! (but its one coin out of 100 distinct)
Vertical rows are change in price
Horizontal rows are solutions to match target price
Dunno if i explained it well
Thamks bai