Problem Detail: I’m just confused, cause from my knowledge recurrence is applied mostly to recursive procedures or divide and conquer techniques etc. Asked By : Sameer Thigale Answered By : David Richerby Sure. The cost of searching a list of length zero is Read More …
Category: Uncategorized
[Solved]: Is a Karp–Levin reduction a Levin reduction?
Problem Detail: My understanding is that Karp many-one reductions are more general than Levin many-one reductions, and that Levin many-one reductions must allow for the number of certificates for a problem $A$ reduced to $B$ to be recovered from a single Read More …
[Solved]: Is every undecidable language reducible to any other undecidable language?
Problem Detail: For the undecidable languages I have seen so far , I am able to give a reduction from one language to other . Is it the case that every undecidable language is reducible to every other undecidable language? If Read More …
[Solved]: Confusion in Banker’s Algorithm: How resources are allocated?
Problem Detail: I have seen examples about Banker’s Algorithm from this Wikipedia link, this book and many other places. In all these examples some processes are allocated resources less than their Max Need. For example, consider the state of system as Read More …
[Solved]: Will the Ford-Fulkerson algorithm always find the max flow if we start from a valid flow?
Problem Detail: I stumbled across this question and answer (source): Question: Suppose someone presents you with a solution to a max-flow problem on some network. Give a linear time algorithm to determine whether the solution does indeed give a maximum flow. Read More …
[Solved]: Are device drivers state machines?
Problem Detail: I know that device drivers are attached to device controllers, which have their own registers and some local buffer storage. I’m wondering if I can think of device drivers as little state machines — i.e. do they read and Read More …
[Solved]: Solving/Optimizing a linear system in a finite field (Z/2Z)
Problem Detail: I’m trying to solve the following optimization problem. A is a rectangular matrix with coefficients in the finite field Z/2Z (size less than 1000 X 1000). I have a system of the form A.X = Y (X and Y Read More …
[Solved]: Choosing a random bit from a bitmap
Problem Detail: Since, I don’t have strong algorithmic background my question may sound a litlle odd. Please correct me, if so. I have quite a large bitmap (~100 Million bits) (e.g. 100100101001010001001…010010). The bitmap is just an example, it doesn’t have Read More …
[Solved]: Simplifying a nested sum
Problem Detail: I’m trying to analyze an algorithm of a function, I can express the function in term of summation, but I have no clues on how I could simplify this summation down to get the run-time in tern of big Read More …
[Solved]: Why is least fixed point (lfp) important in program analysis
Problem Detail: I am trying to get a big picture on the importance of least fixed point (lfp) in program analysis. For instance abstract interpretation seems to use the existence of lfp. Many research papers on program analysis also focus heavily Read More …
