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 …
How can I find the time complexity of an algorithm?
1. Introduction In computer science, the time complexity of an algorithm quantifies the amount of time taken by an algorithm to run as a function of the length of the string representing the input. 2. Big O …
algorithm - how to calculate binary search complexity - Stack Overflow
Nov 18, 2011 · 5 The time complexity of the binary search algorithm belongs to the O (log n) class. This is called big O notation. The way you should interpret this is that the asymptotic growth of the time …
What is Sliding Window Algorithm? Examples? - Stack Overflow
Nov 25, 2011 · While solving a geometry problem, I came across an approach called Sliding Window Algorithm. Couldn't really find any study material/details on it. What is the algorithm about?
Efficient algorithm for detecting cycles in a directed graph
35 In my opinion, the most understandable algorithm for detecting cycle in a directed graph is the graph-coloring-algorithm. Basically, the graph coloring algorithm walks the graph in a DFS manner (Depth …
What is the difference between an algorithm and a function?
An algorithm is a series of steps (a process) for performing a calculation, whereas a function is the mathematical relationship between parameters and results. A function in programming is different …
What is the difference between an on-line and off-line algorithm?
Jul 16, 2012 · An on-line algorithm is one that receives a sequence of requests and performs an immediate action in response to each request. In contrast,an off-line algorithm performs action after …
Algorithm to return all combinations of k elements from n
Sep 24, 2008 · 60 The following recursive algorithm picks all of the k-element combinations from an ordered set: choose the first element i of your combination combine i with each of the combinations …
Negative weights using Dijkstra's Algorithm - Stack Overflow
Variants of Dijkstra's Algorithm The key is there are 3 kinds of implementation of Dijkstra's algorithm, but all the answers under this question ignore the differences among these variants. Using a nested for …
algorithm - Calculate distance between two latitude-longitude points ...
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 …