Problem #3, 5, 8 Solved #10
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Wow, your solution to Problem #5 makes my solution look very silly. Very nice! |
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Well, I knew there was a .lcm method in the Integer class; the trick was just figuring out if there was an easy way to iterate it over the full range of numbers. Given this is Ruby, I just had a hunch that there was (and there was!). |
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The solution to #3 is a little bit dirty, because I wanted to solve assuming no additional knowledge in number theory nor requiring additional gems/files. By contrast, #5 was incredibly simple, after a bit of exploration. Will revisit #8 soon, but it works and gave the correct answer.