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   Author  Topic: sort array containing only 3 type of elements  (Read 5341 times)
sanny
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sort array containing only 3 type of elements  
« on: Dec 3rd, 2008, 1:13am »
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sort the array containg only 3 type of elements randomly distributed, without using extra space ( i.e, no bucket sort ) in O(n) time.
 
Eg.  
input    A= {0,1,1,2,1,0,0,2,2,0,1,1,2,0}
output  A= {0,0,0,0,0,1,1,1,1,1,2,2,2,2}
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towr
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Re: sort array containing only 3 type of elements  
« Reply #1 on: Dec 3rd, 2008, 2:08am »
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A (very much) older thread on this problem can be found here. (There should be more recent ones as well, but I haven't been able to find the right keywords to search for them)
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Wikipedia, Google, Mathworld, Integer sequence DB
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