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<p>[QUOTE=&quot;FlyingMoose, post: 183132, member: 6572&quot;]At the store where I used to live, you could see the cash register display (which was an LCD computer monitor), and it actually had a big picture of each coin, with a number below it indicating how many to give.</p><p><br /></p><p>In one of my computer courses in college, I had to prove that the greedy algorithm is optimal for making change with US coins (1, 5, 10, 25 cent).&nbsp; In other words, first choose the biggest coin possible, then the next biggest, and so on, and you&#039;ll get the fewest number of coins.[/QUOTE]</p><p><br /></p>

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