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Questions tagged [lis]

The longest increasing subsequence problem is to find a subsequence of a given sequence in which the subsequence's elements are in sorted order, lowest to highest, and in which the subsequence is as long as possible.

The longest increasing subsequence problem is to find a subsequence of a given sequence in which the subsequence's elements are in sorted order, lowest to highest, and in which the subsequence is as long as possible. This subsequence is not necessarily contiguous, or unique.

Longest increasing subsequences are studied in the context of various disciplines related to mathematics, including algorithmics, random matrix theory, representation theory, and physics.

The longest increasing subsequence problem is solvable in time O(n log n), where n denotes the length of the input sequence.

Reference.

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How can I get more than one list as an output of recursive function called on list of lists?

I am trying to use a recursive function that prints all lists that has the maximum length out of the lists ( could be one or more if they have the same length) given an input such as…
Raghad
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How can I find the list with maximum length using recursion?

I am trying to use a recursive function that prints the list that has the maximum length out of the lists resulting from my following code: allincreasing :: Ord a => [a] -> [[a]] allincreasing = map nub . filter isSorted . subsequences main =…
Raghad
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how do I catch values returned from selenium web driver and store as one list

I'm new to programming and I am using selenium to get data from scheduled matches from flashscore, I intend to assign each list returned from each loop to a variable so I can perform some calculations and also pop what I don't need. Selenium web…
JOJO
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2-D Array Pyramid in Ruby?

def adjacent_sum(arr) narr = [] l = arr.length arr.each.with_index do |num,index| if index < arr.size-1 narr << arr[index] + arr[index+1] end end return narr end print adjacent_sum([3, 7, 2, 11]) #=> [10, 9, 13],…
Master of puppets
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Why is an ancestral array needed when recovering longest increasing subsequence?

I looked at the following website describing the longest increasing subsequnce algorithm: https://www.fyears.org/2016/12/LIS.html In the section "how to reconstruct the subsequence?", it says that "We should pay attention that the dp in the end is…
cat_20
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longest increasing subsequence problem - n log n solution that returns the actual subsequence - explanation/clarification needed

I've tried to implement the n log n solution to the longest increasing subsequence problem (where you need to find a longest subsequence where each element is larger than the previous one of a given sequence), one which will find the actual…
Entman
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Longest Increasing Subarray after add or subtract some element an amount less than K

Given an array and we can add or subtract some element an amount less than K to make the longest increasing subarray Example: An array a=[6,4,3,2] and K=1; we can subtract 1 from a[2]; add 1 to a[4] so the array will be a=[6,3,3,3] and the LIS is…
emeralddd
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python list : keep unique values

I got the following value in my list : A= [{'43c776cc-dcfe-498e-9e0c-465e498c4509'}, {'43c776cc-dcfe-498e-9e0c-465e498c4509'}, {'43c776cc-dcfe-498e-9e0c-465e498c4509'}, {'fbcbdda3-e391-42f0-b139-c266c0bd564d'}, …
Filipe Wolfrum caeiros
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How to combine string elements of a list for Apriori Algorithm in python?

So I am trying to program Apriori Algorithm. I have here L1= ['apple', 'banana','orange','mango] This list already passed the support threshold, now I have to combine the items for another support threshold which should look like this: C2 =…
Messy Maze
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How to find the longest alternating increasing subsequence by alternating between two arrays

Given two arrays of numbers, how do I find the longest increasing subsequence by alternating between the elements of the two arrays? for example A = [4, 1, 10, 5, 9] B = [4, 5, 7, 14] so the output must be [1,4,5,7,9,14] It HAS to be in the format…
GoldenDelphi
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Python queryto get height price user with count

I have two tables like : User: Id | Name | Age | 1 | Pankhuri | 24 2 | Neha | 23 3 | Mona | 25 And another Price log: Id | type | user_id | price | created_at| 1 | credit | 1 | 100 | 2021-03-05 12:39:43.895345 2 | credit | 2 | 50 |…
Pankhuri
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Dynamic Programming: Can recursion with memoization work with any recursive solution or only solutions in specific formats?

I am reading about dynamic programming and was trying to solve the Longest Increasing subsequence problem. I tried to come up with a brute force recursion approach where I generated all possible increasing subsequences and checked which one is the…
varunkr
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what is the most appropriate data structure supporting binary search to solve LIS?

I would like to solve the Longest increasing subsequence problem in Haskell, with the patience sorting algorithm. I first did it with lists, and it worked in O(n^2) time. Now I would like to do create an algorithm that solve it in O(n log n) time.…
rambi
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Python dictionary in string format

I have a dictionary like this verdict = {'1': 'PASS', '2': 'FAIL} I want to print this dictionary in a string format without using for loop. output: 1: PASS 2: FAIL So far I have tried this: print(*verdict.items(), sep='\n') Output: ('1',…
sam
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Is there any prefeered Python package to create lis type of file(output file generated by SQR)

I have to create .lis(output generated from SQR) type of file using python. I am not able to find any existing python package for it. please help. Thanks
sagar
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