How does a 'diff' algorithm work, e.g. in VCDIFF and DiffMerge?
An O(ND) Difference Algorithm and its Variations (1986, Eugene W. Myers) is a fantastic paper and you may want to start there. It includes pseudo-code and a nice visualization of the graph …
algorithm - Finding all possible combinations of numbers to reach …
Jan 8, 2011 · Here is a Java version which is well suited for small N and very large target sum, when complexity O(t*N) (the dynamic solution) is greater than the exponential algorithm. My …
algorithm - Calculate distance between two latitude-longitude …
Aug 26, 2008 · Some of the answers do refer to Vincenty's formula for ellipsoids, but that algorithm was designed for use on 1960s' era desk calculators and it has stability & accuracy …
The best shortest path algorithm - Stack Overflow
The algorithm has the same worst case complexity as Djikstra's, but in the average case the expected runtime is linear in the size of the graph, which is much faster than the pure Dijkstra. …
algorithm - upper bound, lower bound - Stack Overflow
Feb 24, 2017 · Whatever the algorithm (merge sort, quick sort, etc), we cannot do better than this bound of \Omega(n log n). Lower bounds tell us, intuitively, how hard a particular problem is. …
jwt - RS256 vs HS256: What's the difference? - Stack Overflow
Aug 31, 2016 · One small correction, "HS256 (HMAC with SHA-256), on the other hand, is a symmetric algorithm" - HMAC does not utilize a symmetric-key algorithm (which would allow …
What algorithms compute directions from point A to point B on a …
Jan 10, 2009 · An all-pairs shortest path algorithm will compute the shortest paths between all vertices in a graph. This will allow paths to be pre-computed instead of requiring a path to be …
What are some algorithms for comparing how similar two strings …
You may use the algorithm of computing the length of the longest common sub-sequence to solve the problem. If the length of the longest common sub-sequence for both the input strings is …
Better ways to implement a modulo operation (algorithm question)
May 5, 2010 · The main component of the modular exponentiator is a modular multiplier which I also have to implement myself. I haven't had any problems with the multiplication algorithm- …
What is the best algorithm to find a determinant of a matrix?
Mar 12, 2010 · Note: Not all definitions require 1s for the leading entries, and it is unnecessary for this algorithm. You Can Find R Using Elementary Row Operations Swapping rows, adding …