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Once upon a time in a land far, far away there lived 100 knights, 99 princesses, and 101 dragons. Over time, knights beheaded dragons, dragons ate princesses, and princesses poisoned knights. But they always obeyed an ancient law that prohibits k*****g any creature who has killed an odd number of others.
Eventually only one creature remained alive. Could it have been a knight? A dragon? A princess?

 Oct 30, 2019
 #1
avatar+236 
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I believe this site should help you a bit: https://sites.math.washington.edu/~mathcircle/mathhour/olympiad_2015/15set57.pdf, but I'm not sure. I belive it should be a knight.

 Oct 30, 2019
 #2
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LOL why does this website sensor the K word but not the F word

CalculatorUser  Oct 31, 2019
 #3
avatar+74 
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What....

 

And that site unfortunately only gives you the problem, but not a way to solve it

doorknoob  Nov 4, 2019

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