Champaign Fountain Puzzle
Empty glasses of water are arranged in the following order:
Clustering algorithm that doesn’t require predefining the number of clusters required
I have a set of user queries from a search engine that I want to cluster. The only clustering algorithm I have come across so far is the K-means clustering algorithm, which requires defining the number of clusters up front. But in this case, I do not know how many clusters exist in the data. Is there any clustering algorithm that performs clustering without predefining the number of clusters?
Avoid DD anomalies
I have this problem called out by PMD (static code analyzer) more often that I would like, and would like to know how someone with more experience than me would write it. My code is functional but I find it inelegant, so I want to know how other programmers would write this piece.
Data structure for fast StartsWith filtering of a dictionary
I have a list of english words. I’m trying to come up with a data structure that allows me to do fast StartsWith filtering, like:
Data structure for fast StartsWith filtering of a dictionary
I have a list of english words. I’m trying to come up with a data structure that allows me to do fast StartsWith filtering, like:
Interview puzzle on traveling on a line segment
On a number line of length M, where 0 < M <= 1,000,000,000, you given N (1 < N <= 100,000) integer pairs of points. In each pair, the first point represents where an object is currently located, and the second point represents where an object should be moved. (Keep in mind the second point may be smaller than the first).
Print fixed width list sorted by column
I have a list of varying length where items is strings of varying length. I want to print them by (a mirrored N)/order by column.
How much times command executed? Looking for mistake
I have following piece of code:
A question regarding linked list vs vector insert/remove results comparison
I was reading this blog post: http://kjellkod.wordpress.com/2012/02/25/why-you-should-never-ever-ever-use-linked-list-in-your-code-again/
Mutual exclusion over network – pattern?
I want to do the following: