I am working on a load function that loads files containing one pandas dataframe per file (or even better one np array). I.e. I am loading a .csv file and I want to link it to only one array variable. This function takes as input one dictionary containing the name I want (as key) the variable to take and the
Tag: data-structures
Sort List with duplicates based on related list
Shortened the scenario for brevity. I have three arrays where there is a relationship between the elements at i-th position between the three arrays.. for eg A1[0] is related to A2[0] and also A3[0] and so on … I want to sort the three arrays BASED ON THE A2 (in ascending order). so after sorting, the arrays become One thing
How to take the item from string and use it as a value
I have a string and I need to use this string to fit a model. However when I try try to do this, of course it raises an error which can be seen below. How can I use this string to fit the model? Answer You need to evaluate the string into a Python object, ie do See documentation of
Python datastructure for keys being mapped to auto-increment integer value
I want to store a list of strings into a dictonary data structure, where the key will be the string I provided, and the value will be an auto-increment count. I could do this by keeping a manual counter and then using that when inserting values in a dictionary, but I wanted to know if there is any default data
Comparing two text files and the matches go to a new file
In python I would like to find a way to compare two text files and read one line by line and find it’s match if any in the other file. If they match I would like to take that string and write it to a new file. I do not know how I would even start this the only thing
Find root to leaf path with given sum. Code succeeds with string, fails with list
I am looking at a binary tree problem. The goal is to find all path(s) from root to leaf, such that the values on the path sum up to a given k. For that purpose I have written the same algorithm in two different ways: The first version uses a string parameter a. The second version uses a list parameter
Build tree/linked list from a list of Objects
I am trying to build a tree like hierarchy from modules and their respective submodules, each module has a name, data, and a list of its submodules, With this code I’m able to detect if something is a submodule of something else but I don’t know how I am supposed to form the connections/build the data structure. My desired output
Time limit exceeded when finding tree height
this is my code to find the height of a tree of up to 10^5 nodes. May I know why I get the following error? Warning, long feedback: only the beginning and the end of the feedback message is shown, and the middle was replaced by ” … “. Failed case #18/24: time limit exceeded Input: 100000 Your output: stderr:
Python priority queue- subsequent pops return wrong values after first pop?
I am trying to solve Leetcode #347 Top K Frequent elements using a priority queue. However, my code is failing some test cases. Here is the code: Here is stdout when running this with k = 2 and nums = [4,1,-1,2,-1,2,3] Why does my code seem to skip over 2 as the the entry to return on the second call
Efficiently search a long list of lists
I have a long list of hexahedral point coordinates, for example: Each row defines a hexahedron cell, and by iterating over each cell, I extract the defining faces of the cell (6 faces), and add each face to a list processed_faces All of this is fine, but because some cells are sharing the same face, I needed a way to