Can you please point me to some practice prolems ( on any Online judge) on "K nearest points to origin" It is one time query, But also how can I solve if it's for multiple queries ?
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Can you expound on what kind of problem is "K nearest points to origin" and your algorithm variant? Is it a one-time kind of query?
I have updated the question, Basically I am trying KD-Tree instead of Heap. http://pointclouds.org/documentation/tutorials/kdtree_search.php
It's not nearest points to origin, but I have some closest pair problems.