All Questions
59 questions
1
vote
2
answers
98
views
How to get maximum average of subarray?
I have been working this leet code questions
https://leetcode.com/problems/maximum-average-subarray-i/description/
I have been able to create a solution after understanding the sliding window ...
- 771
0
votes
1
answer
91
views
How to optimize this code: Leetcode input was unexpectedly ( Memory Limit Exceeded )
Leetcode question: Given a binary array nums, return the maximum length of a contiguous subarray with an equal number of 0 and 1.
Leetcode entered a very long input of to the function and its IDE ...
- 19
-5
votes
1
answer
162
views
how this tricky problem could be solved in python for creating subarray
write a program to create subset of given array the value inside the array should be target value and length of array should be k
program that i have tried
arr = [1, 2, 8, 6, 4, 9, 5]
k = 3
target = ...
1
vote
3
answers
99
views
How do I stack arrays horizontally?
I have an array:
> a
array([[[1, 2, 3, 4],
[5, 6, 7, 8],
[9, 10, 11, 12],
[13, 14, 15, 16]],
[[17, 18, 19, 20],
[21, 22, 23, 24],
[25, 26, 27, 28],
...
- 55
1
vote
3
answers
68
views
How do I change values in my subarrays into the avarage of those values?
I have an array:
> a
array([[1, 2, 3], [2, 3, 4], [3, 4, 5]])
I want to change those values to the avarage of those values, so the output will be:
> a
array([[2, 2, 2], [3, 3, 3], [4, 4, 4]])
...
- 55
1
vote
3
answers
644
views
How to get the arrays not contained in another array?
I have two Python arrays with arrays inside:
first = [[0,10],[0,11],[0,12],[0,13]]
second = [[0,10],[0,11]]
and I want to get as a result the array that is in the first one, but not in the other:
...
- 13
0
votes
1
answer
338
views
SubArray selection in swift
I want to do a sub-array selection Python-like (ArraySlice) in Swift.
This is working for me, but I know it's not nice. To make it work I used .suffix embedded to .prefix method. I'm wondering if ...
- 58
1
vote
1
answer
486
views
Check if item exists in same position in each nested list - Python
I'm writing a Connect Four script. The script takes a list of moves as input ("A_Red, "B_Yellow", "G_Red", etc), which I'm sorting into a matrix. Each nested list represents a ...
- 105
0
votes
1
answer
945
views
Cut a sequence of length N into subsequences such that the sum of each subarray is less than M and the cut minimizes the sum of max of each part
Given an integer array sequence a_n of length N, cut the sequence into several parts such that every one of which is a consequtive subsequence of the original sequence.
Every part must satisfy the ...
- 83
0
votes
1
answer
76
views
Divide Array in subarrays by local peaks
Hey there i have an numpy array y with over 4000 values.
data=pd.read_csv('samplesdata.csv',sep=";", decimal=",",encoding='latin-1')
sensor_data=data[['Euklidische Norm']]
...
0
votes
0
answers
114
views
Numpy subarray given by center and radius
Is there a function or more concise notation to get b or bb in the code snippet below?
import numpy as np
a = np.arange(12).reshape(3, 4)
c = (1, 2)
r = 1
b = a[c[0]-r:c[0]+r, c[1]-r:c[1]+r]
bb = a[c[...
- 8,235
0
votes
0
answers
121
views
Automating for loop between multiple subarrays in Python
I have multiple dbf files in a directory that I am trying to loop through and convert into excel files. However, because the loop times out after running for a while I divided the array list into ten ...
1
vote
2
answers
1k
views
how to get elements in sub-array of a numpy array in python
I'm getting in trouble with reading the entries of a sub-array of a numpy array, in python. I've got something like this:
a = np.array([ [453,254,[1,2,3,4,5]], [743,251,[10,20,30,40,50]], [127,393,[11,...
- 641
0
votes
0
answers
25
views
Sub-arrays can't be changed individually when created at the same time [duplicate]
I created an array with two sub-arrays containing zeros:
a=[[0]*3]*2
This looks like so:
[[0, 0, 0], [0, 0, 0]]
I try to modify the first value of the first sub-array like this:
a[0][0] = 1
Then ...
- 229
0
votes
1
answer
186
views
Minimum removal of subarrays to make array equal to target
Lets say we have an array [5, 4, -2, 4, -3] and we want all elements to equal to 0. Subarrays can be used to add or subtract by 1. For example, I can add 1's from index 0 to 3, and then the list is [5 ...
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