What is an NP-complete in computer science? [closed]
Oct 17, 2008 · NP-Hard/NP-Complete is a way of showing that certain classes of problems are not solvable in realistic time. Edit: As others have noted, there are often approximate solutions for NP …
What are the differences between NP, NP-Complete and NP-Hard?
Dec 7, 2009 · NP-Complete NP-Complete is a complexity class which represents the set of all problems X in NP for which it is possible to reduce any other NP problem Y to X in polynomial time. Intuitively …
What's "P=NP?", and why is it such a famous question?
An NP-complete problem is one that is NP (of course), and has this interesting property: if it is in P, every NP problem is, and so P=NP. If you could find a way to efficiently solve the Traveling …
How to prove that a problem is NP complete? - Stack Overflow
Nov 27, 2010 · I have problem with scheduling. I need to prove that the problem is NP complete. What can be the methods to prove it NP complete?
how were the first NP-complete problems shown to be NP-complete?
Mar 1, 2009 · The question is not whether NP-complete problems exist, or how to prove a problem is NP-complete, but what that means. Nobody has yet produced a polynomial-time algorithm to solve …
What are NP and NP-complete problems? - Stack Overflow
Dec 8, 2016 · You are best off looking for an alternative problem to try to solve or to resign yourself to a heuristic solution that does well in most but not all cases. As to your original thoughts about DFS …
How to understand the knapsack problem is NP-complete?
Oct 11, 2010 · 4 This is because the knapsack problem has a pseudo-polynomial solution and is thus called weakly NP-Complete (and not strongly NP-Complete).
Are all NP problems also NP-complete? - Stack Overflow
May 31, 2017 · So, if all other problems in NP transform to an NP-complete problem, then does that not also mean that all NP problems are also NP-complete? What is the point of classifying the two if they …
algorithm - NP-Complete VS NP-Hard - Stack Overflow
Dec 11, 2013 · An NP-Complete problem is one that is in NP and is also NP-Hard. Is the above definition correct? If so, What about problems not In NP but NP-Hard. Wouldn't they be harder than …
Confusion about NP-hard and NP-Complete in Traveling Salesman …
Apr 15, 2018 · Traveling Salesman Optimization(TSP-OPT) is a NP-hard problem and Traveling Salesman Search(TSP) is NP-complete. However, TSP-OPT can be reduced to TSP since if TSP …