I have written some Python code that opens files one by one, does some work, and writes data onto the filesystem. I figured, I want to make use of my cores.I've refactored the program into this.
from multiprocessing import Pool
import globdef work(file_name):
# do work
passif __name__ ==...
I would like to create a function like zip_lognest in python and if the array size is uneven, I do not want to filled any value. following is my code and example
const aFixture = [
{ name: 'name_a', value: 'value_a'},
{ name: 'name_b', value: 'value_b'},
{ name: 'name_c', value: 'value_c'}...
I have roughly 100 datasets with different variables (and different numbers of variables) but each dataset has a household ID (hh_ID) as an identifier. Variables represent survey questions. Each csv represents a different type of survey. I want to write a custom function that counts the number of...
public class hw1
{
public static void main(String[] args)
{
int a = 2;
int b = 4;
int out =0;
for(int i = 1; i <= 20; i += 2)
{
out = -a + b + out;
a +=2;
b +=2;
}
System.out.println(out);
}
}...
I am learning spring from Sping in Action 5th edition by Craig Walls.
I have searched the internet for the issue but did not land at any solution.
Issue:
design.html has a form which has a list which is rendered empty if the form fields have validation error. Following is the code:
design.html...
I'm not certain if my implementation is correct, it appears to be, but looking for any feedback as far as readability and efficiency goes. Obviously using dictionaries isn't particularly efficient space wise, but how else could you achieve O(1) lookup?
import os
def get_suffixes(string):
re...
I have a text-to-speech app that takes input and 'builds' up a string. The problem is the text may be 'scrolled' at any time.
So e.g.
- "This"
- "This is"
- "This is a"
- "This is a text"
- "This is a test of"
- "This is a test of the input"
- "of the input. This"
- "of the input. This is"
- "o...
I've view several solution by adding flush(), but the problem still not solved.
The code function in I'll add data after clicked on jbutton1, and print the file
by clicking jbutton2
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { ...
I created dynamic insert function for PDO.
It does works but i want to be sure that it is secure and well coded
function insertNewRows($pdo, $table, $fields, $placeholders, $values=''){
if($values){
$result = $pdo->prepare("INSERT INTO $table ($fields) VALUES ($placeholders)");
...
I am assigned to a task of creating a fuction int logBase10Estimate(int n) that returns the log of a number base 10. The answer is integer part only.(w/o using the Math class)
Is this okay?
static int logBase10Estimate(int n){
int count = 0;
for(int x = 10; ;x*=10){
if(x < n){
count...
I am working on a Code Kata
// There is a queue for the self-checkout tills at the supermarket.
// Your task is write a function to calculate the total time
// required for all the customers to check out!
// input
// customers: an array of positive integers representing the queue.
// Each...
I wrote a program where the computer guesses a random number.
To do this, I implemented a form of binary search. This correctly handles any edge-cases that I know of, including 0 and std::numeric_limits<int>::max(). This doesn't handle negative numbers (since rand will never return one) but that...
I rewrote a compiler project right now containing semantics, parser and verifier, in Java (only now I've realised Scala and Haxe are among Ubuntu packages...). Links: source code, language overview.
As an example, the verifier explicitly marks 'frame properties' (or locals) captured by inner fun...
This code works for converting a chess piece location to an index.
A chessboard piece describes its location with file a-h (x-axis) and rank 1-8 (y-axis) so this can be represented with indices from 0 to 63.
56 57 58 59 60 61 62 63
48 49 50 51 52 53 54 55
40 41 42 43 44 45 46 47
32 33 34 35 36...
I'm trying to develop a web application for documentation.. I managed to achieve a live preview with Syntax highlighting.
Please help me with performance tuning & simplifying the JavaScript code.. I'm not so good with JavaScript & performance tuning.
Any suggestions or comment most welcome. Tha...
I wanted to try and learn multi-threading, so I thought it would be good to make a small program normally first and make it multi-threaded, so I made this prime finder.
from time import sleep
def prime_finder(num: int) -> bool:
"""Checks to see if a number is prime"""
if num == 2:
...
I use zypper to download and install for openSUSE Tumbleweed (much like everyone else of course). Unfortunately it downloads packages serially, and having about a thousand packages to update a week, it gets quite boring. Also, while zypper can download packages one-by-one in advance, it can't be ...
https://leetcode.com/problems/search-a-2d-matrix/
Write an efficient algorithm that searches for a value in an m x n
matrix. This matrix has the following properties:
Integers in each row are sorted from left to right. The first integer
of each row is greater than the last integer of...
I finally finished my Conway's game of life in c++ project and i'd love to find out how to improve the code.
main.cpp
#include "Engine/Engine.h"
int main()
{
Conway::Engine Engine(1280, 1024);
Engine.Run();
return 0;
}
Engine.h
#pragma once
#include <SDL2/SDL.h>
#include <memory>
I have two tables with a 1-many relationship, Device and TestResult.
My application has a filter builder front-end that allows a user to retrieve TestResults based on whatever filters they specify. This generates queries similar to this:
SELECT d.id,
d.serialNumber,
d.createdAt,
...
