Why do a task the hard way, when a little bit of thought can save you a lot of time? Here's a chance to find some efficient methods to solve some tricky problems.
In a world with just pennies, your purse or pockets would be very heavy. Two-coin systems make life much easier... Which coins would you choose?
If you wanted to design an efficient currency system, which coin denominations would you choose?
Can you design a good strategy for finding out from which floor you can drop an egg without it smashing?
Find out all about greedy algorithms in this short article.