How does a 'diff' algorithm work, e.g. in VCDIFF and DiffMerge?
The algorithm was independently discovered as described in "Algorithms for Approximate String Matching", E. Ukkonen, `Information and Control' Vol. 64, 1985, pp. 100-118. Reading the papers then looking at the source code for an implementation should be …
algorithm - Calculate distance between two latitude-longitude …
Aug 26, 2008 · How do I calculate the distance between two points specified by latitude and longitude? For clarification, I'd like the distance in kilometers; the points use the WGS84 system and I'd like to unde...
What are some algorithms for comparing how similar two strings …
What you're looking for are called String Metric algorithms. There a significant number of them, many with similar characteristics. Among the more popular: Levenshtein Distance : The minimum number of single-character edits required to change one word into the other. Strings do not have to be the same length Hamming Distance : The number of characters that are different in two …
Big O, how do you calculate/approximate it? - Stack Overflow
Most people with a degree in CS will certainly know what Big O stands for. It helps us to measure how well an algorithm scales. But I'm curious, how do you calculate or approximate the complexity...
algorithm - Polynomial time and exponential time - Stack Overflow
Nov 30, 2010 · Could someone explain the difference between polynomial-time, non-polynomial-time, and exponential-time algorithms? For example, if an algorithm takes O(n^2) time, then which category is it in?
c# - TLS 1. 2 The client and server cannot communicate, because …
Feb 18, 2019 · Exception is - The client and server cannot communicate, because they do not possess a common algorithmSystem.ComponentModel.Win32Exception (0x80004005): The client and server cannot communicate, because they do not possess a common algorithm.
algorithm - What does O (log n) mean exactly? - Stack Overflow
Feb 22, 2010 · A common algorithm with O (log n) time complexity is Binary Search whose recursive relation is T (n/2) + O (1) i.e. at every subsequent level of the tree you divide problem into half and do constant amount of additional work.
algorithm - Finding all possible combinations of numbers to reach …
Jan 8, 2011 · How would you go about testing all possible combinations of additions from a given set N of numbers so they add up to a given final number? A brief example: Set of numbers to add: N = {1,5,22,15,0...
algorithm - Difference between Big-O and Little-O Notation
Sep 1, 2009 · Algorithm A can't tell the difference between two similar inputs instances where only x 's value changes. If x is the minimum in one of these instances and not in the other, then A will fail to find the minimum on (at least) one of these two instances. In other words, finding the minimum in an array is in not in o(n) and is therefore in 𝛺(n).
algorithm - Javascript Array.sort implementation? - Stack Overflow
Oct 24, 2008 · Which algorithm does the JavaScript Array#sort() function use? I understand that it can take all manner of arguments and functions to perform different kinds of sorts, I'm simply interested in which algorithm the vanilla sort uses.