What is an NP-complete in computer science? - Stack Overflow
Oct 17, 2008 · What is NP-Hard? NP-Hard are problems that are at least as hard as the hardest problems in NP. Note that NP-Complete problems are also NP-hard. However not all NP-hard …
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 …
how were the first NP-complete problems shown to be NP …
Mar 1, 2009 · So, my question is, how were the first NP-complete problems 'proven' to be NP-complete? At one time, the set of known NP-complete problems must have been zero, and …
How to understand the knapsack problem is NP-complete?
Oct 11, 2010 · To understand NP-completeness, you have to learn a bit of complexity theory. However, basically, it's NP-complete because an efficient algorithm for the knapsack problem …
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 …
What are NP and NP-complete problems? - Stack Overflow
Dec 8, 2016 · Those problems are called NP -hard.) From a practical perspective, if you are ever asked to solve a problem that is known to be NP -complete or NP -hard, don't expect to find an …
Proof that the halting problem is NP-hard? - Stack Overflow
In this answer to a question about the definitions of NP, NP-hard, and NP-complete, Jason makes the claim that The halting problem is the classic NP-hard problem.
Are there public key cryptography algorithms that are provably NP …
Nov 19, 2011 · Should practical quantum computing become a reality, I am wondering if there are any public key cryptographic algorithms that are based on NP-complete problems, rather than …
Whats the difference between NP and co-NP - Stack Overflow
Jun 11, 2013 · 21 I know their complete counterparts mean that NP - complete is the hardest in the NP problems and co-NP-complete means the hardest in co-NP problems but whats the …
How to prove that a problem is NP complete? - Stack Overflow
Nov 27, 2010 · Prove NP Hardness : Reduce an arbitrary instance of an NP complete problem to an instance of your problem. This is the biggest piece of a pie and where the familiarity with …