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 - 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 …
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 - Difference between Big-O and Little-O Notation
Sep 1, 2009 · Stuff you know: A common way to classify algorithms is by runtime, and by citing the big-Oh complexity of an algorithm, you can get a pretty good estimation of which one is …
algorithm - How does one make a Zip bomb? - Stack Overflow
Sep 22, 2009 · The construction uses only the most common compression algorithm, DEFLATE, and is compatible with most zip parsers." "Compression bombs that use the zip format must …
algorithm - Peak signal detection in realtime timeseries data
Robust peak detection algorithm (using z-scores) I came up with an algorithm that works very well for these types of datasets. It is based on the principle of dispersion: if a new datapoint is a …
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 …
algorithm - What is the best way to get the minimum or maximum …
Jan 8, 2009 · Then there is an algorithm that finds the min and max in 3n/2 number of comparisons. What one needs to do is process the elements of the array in pairs. The larger of …
algorithm - How to find convex hull in a 3 dimensional space
Aug 24, 2013 · Since the algorithm spends O(n) time for each convex hull vertex, the worst-case running time is O(n2). However, if the convex hull has very few vertices, Jarvis's march is …
algorithm - How can building a heap be O(n) time complexity?
Mar 18, 2012 · The main idea is that in the build_heap algorithm the actual heapify cost is not O(log n)for all elements. When heapify is called, the running time depends on how far an …