I’m tinkering with some code and I realized something I never knew. A normal binary search will return a random index in a data set for a key that occurs more than once. How can I modify this code below to return the first occurrence? Is this something people do? Answer Having found a matching value, you basically need to
Tag: search
Ultra-fast “Begins With” Query from Disk
I have a 40MB (too big for memory in this case) list of strings that I want to do “begins with” queries on to extract matches. Anyone know of a good data structure for this? Bonus points for an existing os java implementation. I would be willing to sacrifice “begins with” to just exact matching if something already exists. A
A range intersection algorithm better than O(n)?
Range intersection is a simple, but non-trivial problem. Its has been answered twice already: Find number range intersection Comparing date ranges The first solutions is O(n) and the second solution is for a database (which is less than O(n) of course). I have the same problem, but for a large n and I am not within a database. This problem