lower-bound
What are the rules for the "Ω(n log n) barrier" for sorting algorithms?
I wrote a simple program that sorts in O(n). It is highly memory inefficient, but that\'s not the point.[详细]
2023-03-29 19:06 分类:问答STL functions with 3-way comparison predicate
Is there any library with STL functions like std::sort(), std::binary_search(), std::lower_bound(), std::upper_bound() accepting 3-way comparison predicates (which return -1 on less, 0 on equal, 1 on[详细]
2023-03-07 08:00 分类:问答The complexity of verifying solutions to NP-hard optimization problems?
There are many optimization problems that are known to be NP-hard, such as the traveling salesman problem, MAX-SAT, or finding the minimum chromatic number of a graph.Given a problem of this sort, I\'[详细]
2023-02-14 03:58 分类:问答How can I prove a lower bound that is \Omega{(n (logn)^k)} ? [k>1]
There are many algorithms run inO(n {log n}^k)-time, where k>1. It would be very helpful if you could provide me some reference about any problem[详细]
2023-02-08 20:45 分类:问答What .NET dictionary supports a "find nearest key" operation?
I\'m converting some C++ code to C# and it calls std::map::lower_bound(k) to find an entry in the map whose key is equal to or greater than k. However, I don\'t see any way to do the same thing with .[详细]
2022-12-10 14:26 分类:问答