memoization Questions
5
Solved
Here on stack overflow I've found the code that memoizes single-argument functions:
static Func<A, R> Memoize<A, R>(this Func<A, R> f)
{
var d = new Dictionary<A, R>();
r...
Confess asked 12/12, 2013 at 13:18
4
Solved
Can useMemo be used just to avoid extra referential equality checking code/vars when setting state during a render?
Example: useMemo with a setState during render taken from this rare documented ...
Alible asked 25/9, 2019 at 15:46
6
Solved
I have this memoization technique to reduce the number of calls getting a Fibonacci sequence number:
def fastFib(n, memo):
global numCalls
numCalls += 1
print 'fib1 called with', n
if not n i...
Sphingosine asked 10/4, 2015 at 21:20
6
Solved
I am stumped with this memoize problem. I need to create a function that will check to see if a value has already been calculated for a given argument, return the previous result, or run the calcul...
Performative asked 22/5, 2015 at 1:22
13
Solved
Is there a way to memoize the output of a function to disk?
I have a function
def getHtmlOfUrl(url):
... # expensive computation
and would like to do something like:
def getHtmlMemoized(url) = me...
Phocis asked 9/5, 2013 at 14:0
3
Solved
I want a way to exit a begin/end block while still assigning the variable that its result is assigned to.
def foo
@foo ||= begin
puts "running"
return "leaving early" if true # would be some s...
Stanislas asked 17/4, 2019 at 20:43
3
I am working on a React project with NextJS 13 and I have problems with using request memoization for fetch. It always sends request to backend even in the same request.
I have a simple endpoint at...
Despinadespise asked 7/10, 2023 at 9:36
3
Solved
I came across an interesting problem and was wondering if and how could this be done in Java:
Create a method which can memoize any function/method . The method has the following arguments : the me...
Lewes asked 18/12, 2014 at 15:18
21
Solved
I have a set of integers. I want to find the longest increasing subsequence of that set using dynamic programming.
Recollect asked 13/4, 2010 at 17:26
7
Solved
I'm using @functools.lru_cache in Python 3.3. I would like to save the cache to a file, in order to restore it when the program will be restarted. How could I do?
Edit 1 Possible solution: We need...
Nihhi asked 23/3, 2013 at 10:5
2
Solved
I'm developing my own functional-programming library, and now referring the underscore.
memoize _.memoize(function, [hashFunction])
Memoizes a given function by caching the computed result. U...
Nominee asked 30/6, 2014 at 9:25
2
const useSomeHook = ({number}) => {
const [newNumber, setNewNumber] = useState(0)
useEffect(() => {
setNewNumber(number + 1)
}, [number])
}
const SomeComponent = ({number, value, ...res...
Earn asked 26/4, 2020 at 9:28
3
Solved
Looking at React's useMemo documentation. They say to use it when you need to compute an expensive calculation.
This optimization helps to avoid expensive calculations on every render.
I looke...
Peppers asked 29/3, 2019 at 12:49
3
Solved
I have been trying to write the implementation of the memoize function in JavaScript. I was asked this in an interview question and haven't been able to put it out of my mind since. I would really ...
Warplane asked 1/6, 2021 at 20:49
5
Solved
I've created a memoized function of the recursive version of fibonacci.
I use this as an example for other kinds of functions that would use memoization.
My implementation is bad since if I include...
Wye asked 5/3, 2015 at 5:53
4
Solved
Consider below inputs for typical Knapsack problem.
V = [10,8,12]
W = [2,3,7]
i = 1,2,3
C = 10
I tried recursion with memoization to solve this sample but found no overlapping sub problem.
Sig...
Jelene asked 18/8, 2016 at 19:49
2
Solved
I want a help in optimising a solution of a problem, I already sort out the problem, but my code is not good enough for handling large array -
codeWars : Sum of Pairs - problem
Here is my code -
...
Sheers asked 16/2, 2017 at 9:55
20
Solved
Consider the following:
@property
def name(self):
if not hasattr(self, '_name'):
# expensive calculation
self._name = 1 + 1
return self._name
I'm new, but I think the caching could be fac...
Rosie asked 2/5, 2009 at 16:15
5
Solved
My bestSellerDummy data doesn't change, so I'd like to prevent the same Product child to be rerendered if parent rerenders. I have tried using useMemo in parent and React.memo in child but no luck,...
Levinson asked 15/11, 2020 at 6:9
12
Solved
What is the difference between memoization and dynamic programming? I think dynamic programming is a subset of memoization. Is it right?
Tympanites asked 31/5, 2011 at 8:28
3
What I have learnt is that dynamic programming (DP) is of two kinds: top-down and bottom-up.
In top-down, you use recursion along with memoization. In bottom-up, you just fill an array (a table).
...
Borderline asked 29/9, 2013 at 22:46
2
Solved
Basically this:
function MyComponent() {
let [count, setCount] = useState(1)
let memo = useMyMemo(() => new MyClass)
return <div onClick={update}>{count}</div>
function update...
Snooperscope asked 10/8, 2019 at 10:44
4
Solved
I'm wondering if there is a more "Ruby-like" way to memoize functions with multiple parameters in Ruby. Here's a way that I came up with that works but not sure if it's the best approach:
@cache =...
Torchier asked 14/8, 2018 at 17:57
7
Solved
I'm having some trouble getting the correct solution for the following problem:
Your goal is given a positive integer n, find the minimum number of
operations needed to obtain the number n sta...
Reavis asked 4/5, 2016 at 6:23
4
Solved
Ok, here is the real world scenario: I'm writing an application, and I have a class that represents a certain type of files (in my case this is photographs but that detail is irrelevant to the prob...
Birdwatcher asked 4/6, 2012 at 9:32
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