algorithm - What are the differences between segment trees, …
2013年7月4日 · Segment tree stores intervals, and optimized for "which of these intervals contains a given point" queries. Interval tree stores intervals as well, but optimized for "which of these intervals overlap with a given interval" queries. It can also be used for point queries - similar to segment tree.
C++ - interval tree implementation - Stack Overflow
2014年1月24日 · Does someone know any good interval tree implementation in C++? Obviously, something template-driven, better in boost-like style. And another question - if somebody tested, does a basic std::vector-based interval tree implementation with sorting can beat the generic interval tree (with O(lg) operations) in practice?
Looking for an efficient Interval tree Algorithm - Stack Overflow
2020年2月11日 · A centered interval tree, where each node has a point, trees of intervals that overlap that point (same nodes, sorted 2 ways), and left + right children, using red-black balancing. That's what I thought you were talking about. I don't think the "augmented tree" from the wikipedia link is properly called an "interval tree". –
Practical Applications of Interval Tree - Stack Overflow
2015年4月15日 · Interval tree is mainly a geometric data structure and often used for windowing queries, for instance, to find all roads on a computerized map inside a rectangular viewport, or to find all visible elements inside a three-dimensional scene. Now my question is actually in two parts: How is interval tree used to find all roads on a computerized map?
Time complexity analysis for interval tree - Stack Overflow
2019年12月9日 · The interval tree I'm currently learning has the following data structures for each node: key: the median of endpoints of all the intervals; left, right: pointing to left and right subtrees; intervals: a list of intervals containing the intervals who contain key. More accurate information can be found in this link.
codeplex - C# Interval tree class - Stack Overflow
I'm looking for an interval tree C# collection class. I need to be able to add intervals, idealy 2D, otherwise perhaps I could combine two standard 1D interval trees. I also need to be able to find out what intervals overlap a given interval. I found this intervaltree.codeplex.com but . There are no downloads associated with this release. edit:
Newest 'interval-tree' Questions - Stack Overflow
2022年7月29日 · This question is exercise 14.3-4 in Introduction to Algorithms, Second Edition. 14.3-4: Given an interval tree T and an interval i, describe how all intervals in T that overlap i can be listed in O(...
Finding C++ interval tree algorithm implementation
The C++ standard library offers red/black trees std::map, std::multimap, std::set and std::multiset.. Really, I can't think of any way to handle this more efficiently than to keep a std::map of iterator pairs, and passing those iterator pairs to upper_bound() and lower_bound().
algorithm - Interval Tree Using C++ STL or - Stack Overflow
2013年8月5日 · insert(a,b) : Insert Interval [a,b]. count(x) : Count number of intervals that contain the point x. remove(a,b) : Remove Interval [a,b] from the set of intervals. I came across the interval trees and its implementation in C++ requires the use of Red Black Trees.
Interval tree algorithm that supports merging of intervals with no ...
2010年4月9日 · I'm looking for an interval tree algorithm similar to the red-black interval tree in CLR but that supports merging of intervals by default so that there are never any overlapping intervals. In other words if you had a tree containing two intervals [2,3] and [5,6] and you added the interval [4,4], the result would be a tree containing just one ...