I found some graphs on Wikipedia’s Dominating Set article that illustrate this difference. These examples show dominating sets (in red) that aren’t vertex covers, the opposite of what you asked later on in your question. The edges in (V-D) prevent them from being vertex covers.
To answer this question, you first need to understand which NP-hard problems are also NP-complete. If an NP-hard problem belongs to set NP, then it is NP-complete. To belong to set NP, a problem needs to be (i) a decision problem, (ii) the number of solutions to the problem should be finite and each solution … Read more
You really should not be using RMI for any application you build today, basically for the reasons you just laid out. In some cases (diving into legacy or “enterprise” applications) you just have no choice. However, if you are starting a new project, other options are: REST + JSON over HTTP The de-facto standard for … Read more
Reactive Programming is a form of Dataflow programming only. But its also a paradigm which is oriented around propagation of changes along with data flows Like a example given on Wiki Page a:=b+c would mean that a is being assigned the result of b + c, in the instant the expression is evaluated, and later, … Read more
Cook’s Theorem The class NP can be defined as the class of problems decidable by a nondeterministic Turing machine in polynomial time. This theorem shows that SAT is NP-complete by encoding the operation of any nondeterministic Turing machine by a boolean formula, in such a way that the machine accepts if and only if that … Read more
The book: Data Structures and Algorithm Analysis in Java (2nd Edition), by Mark Allen Weiss Says that a D&C algorithm should have two disjoint recursive calls, just like QuickSort does. Binary Search does not have this, even though it can be implemented recursively.
You are only specifying the time complexity, but the space complexity is also important to consider. The problem complexity can be specified in term of N (the length of the range) and K (the number of missing elements). In the question you link, the solution of using equations is O(K) in space (or perhaps a … Read more
In addition to the answers already given, here’s a link to an article I think is relevant. Excerpts: In the object-oriented framework, inheritance is usually presented as a feature that goes hand in hand with subtyping when one organizes abstract datatypes in a hierarchy of classes. However, the two are orthogonal ideas. Subtyping refers to … Read more
Repeated addition would be a very inefficient way to multiply numbers, imagine multiplying 1298654825 by 85324154. Much quicker to just use long multiplication using binary. 1100100 0110111 ======= 0000000 -1100100 –1100100 —0000000 —-1100100 —–1100100 ——1100100 ============== 1010101111100 For floating point numbers scientific notation is used. 100 is 1 * 10^2 (10 to the power of … Read more
If you want a list of college courses that you’ll need to understand the book, here it is: Calculus (I, II and III) Differential Equations Linear Algebra Statistics (or a good covering of Bayes) However, I did just fine in my NN classes without Diff. Eq. and just had to look up concepts I hadn’t … Read more