This class reads a log file stored on my server, parses it, and returns it. It also caches the data so that subsequent calls to get the analytics data will not have to read from the file. The analytics files will be relatively small, so memory usage is not a concern.
The callback passed to getAn...
I'm pretty confident in this code but I want to be sure I haven't missed anything to do with optimization or error handling. The program takes input in the form of {number} {operator} {number} and prints the result. If the input is invalid it prints nothing.
Example input: 1.0 + 2.0
Output: 3
#...
I'm reading about multithreads with C++. My code is to compute the sum of elements using multithread approach. The code is
#include <iostream>
#include <thread>
#include <vector>
#include <atomic>
void func(std::atomic<long long>& sum, const std::vector<long long>& vec)
{
long long result(...
I have this set of functions in my Google Sheet to create a Bitly bitlink whenever data in a row is changed. While this does work, it seems really slow to me. Looking at the Execution transcript, it looks like the lag is happening when the script queries the Sheet:
Spreadsheet.getRange([L6]) [9...
My task is to optimize some methods and while looking at code I found this bottleneck (I apologize if the formatting seems off):
// ...
IEnumerable<Card> storageCards =
Db.StorageCards
.Where(x => x.Active && x.DocumentType == (int)DocumentType.Import);
// excludeLast...
Im working on a project where a grid of images are loaded all at once. when the mouse is on hover a certain image, a corresponding gif fades in and then fades out when the mouse moves away from the image.
I was able to get a working fiddle with the code i currently have. i have about 20 images ...
I am looking at the following piece of code:
import numpy as np
import cv2
import sys
def calc_sloop_change(histo, mode, tolerance):
sloop = 0
for i in range(0, len(histo)):
if histo[i] > max(1, tolerance):
sloop = i
return sloop
else:
sloop = i
def process(inpath, ou...
I'm just wondering if there is any improvements that can be made on my queries, as i've looked around and posts are saying to use UNION ALL instead of OR but with the performance times it looking like the OR condition works out better.
Could anyone please give me some advise on improving my que...
This is something I am always asked by managers and clients : "make it random". More often than not, this isn't what they want.
Comments like "I had the same element twice in a row !" and "I don't see lement X often enough !" are common, even if they are part of the "true random".
I came up wi...
When looking at this question, I noticed that the syntax highlighting wasn't that great, most likely due to the mix of one block with HTML and Angular2 and blocks with TypeScript.
I decided to improve it by adding the necessary language hints -- <!-- language: lang-or-tag-here --> -- but looking...
I study the Deep Running just 2days. KK
I was test bear(panada) & flower etc
I want to implement to
Input data (cvs.file) -> hidden layer(n-n) -> result ( various_value )
result is not 0 or 1.
I saw the Deep Running has many methods(RNN, CNN, NN, ect)????
I'm not enough to know that.
So, I...
please help me to optimize the code. Task is to encrypt part of the file using aes encryption algorithm. I did
public static byte[] AES_(int len, byte[] passwordBytes, byte[] saltBytes, FileStream fSin)
{
byte[] encryptedBytes = null;
byte[] encryptedBytesAndIV ...
I worked on a dynamic programming problem. Here is its link. I have to find the number of ways respecting the constraint that user doesn't go to the Gym for two consecutive days.
public int numWays(int n) {
int[] DP = new int[n + 1];
DP[0] = 0;
DP[1] = 2;
DP[2] = ...
The code below allows me to determine what the most common main dish and the most common method of preparation for the most common main dish, for each US Region. It uses data obtained from 'thanksgiving-2015-poll-data.csv' which can be found here https://github.com/fivethirtyeight/data/tree/maste...
I am new to Python software development, especially using Tkinter. I just wanted some pointers to help my code look and operate in a more clean manner. I posted this code which is a mini risk management tool for work, so that I can run some reports automatically.
from tkinter import *
from tkin...
I've written some code using python having tried to comply with OOP design for the purpose of collecting name of the app, price and developer name from i-tune site by going deeper until there is a limit [which can be toggled within my script] to stop as it has millions of links to go if that is n...
I've been working on a Patience clone in java using javaFX.
It's not finished yet, there are some features not working and some bugs still there, but I'm really in need of some structural advice and I know that alot of the things I'm doing are just getting real messy.
If someone has the knowled...
This should be relatively simple, but I want to know if I've done the randomness bit correctly.
<?php
function seeded_shuffle(array &$input, int $seed) {
$rand = function($max) use (&$seed, &$rand) {
static $rng_a = 0x41C64E6D;
static $rng_c = 0x00006073;
// rng_m = 2...
In my code I have a function that generate a 2D gaussian function given sigma like so:
#include <opencv2/highgui.hpp>
#include <opencv2/imgproc.hpp>
#include <iostream>
int main(int argc, char* argv[])
{
cv::Mat kernel = getGaussianKernel(rows, cols, 50, 50 );
//Then I use that kernel for s...
Problem Statement:
Implement regular expression matching with support for '.' and '*'.
'.' Matches any single character.
'*' Matches zero or more of the preceding element.
The matching should cover the entire input string (not partial).
The function prototype should be:
...
I have a model class with user's information in it. I want to display some of that information with one view controller, update/change that information in another, and keep all of the views up-to-date with whatever is in the model class.
I was told using a singleton could work but is not recomme...
I'm working on system that tags images. I'm going to use the xxHash (lz4) for hashing images. With hashes of size 64 bits, it looks like I won't have a 50% chance of a collision until ~4 billion images are added. At that point I think a collision would be the least of my worries.
The size of my ...
Have the following code:
if (message.hasNoSequence()) {
throw new IllegalArgumentException();
}
...
@MessageExceptionHandler({MethodArgumentNotValidException.class, IllegalArgumentException.class})
public Message handleMethodArgumentNotValidException(Exception e) {
logger.debug("ha...
I'm making a small Zoo application, in this question I will cover only the basics - the animals.
I've picked the component-based design over inheritance because the creatures can be quite complex thus I need as much extendability as possible.
I've left most of my questions inside the code in th...
I've been working on a custom malloc where the test code is the following.
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include "../tst.h"
#include "../brk.h"
#include <time.h>
/* returns an array of arrays of char*, all of which NULL */
char ***alloc_matri...
Problem
Adapted from this HackerRank problem.
Instead of printing YES or NO, I just wanted to return a boolean.
Implementation
public class BeautifulNumberValidator {
public static boolean isValidBeautifulNumber(String s) {
if (s.length() < 2) {
return false;
}
for (i...
Instead of
this.getValue();
I thought it would reduce duplication I had number objects such as
this.value.get();
I have numbers that need min/max specified as well as other functionality and this is the most time efficient / centralized way I could come up with
class Num{
constructor(v...
I am trying to make a rake task but after completion my code i realized i need some refactorization. How could I do refactorization of the following code?
def self.transaction_type(row)
if row['SENDER_BLZ'] == '00000000' and row['RECEIVER_BLZ'] == '00000000'
return 'AccountTransfer'
...
I made a tiny little bash script, that prints the current IP Address to the command line. I checked the script with ShellCheck and I get the following message:
SC2026: This word is outside of quotes. Did you intend to 'nest '"'single quotes'"' instead'?
What is wrong with the way I have bee...
Do two circles in a 2d overlap
overlap
(r1 + r2) * (r1 + r2) > deltaX * deltaX + deltaY * deltaY
I know pretty basic but is the math correct or did I code the math wrong?
Or is there a style problem?
internal struct HoleInfo
{
public float Diameter { get; internal set; }
public float...
I'm programming a model for a blog with authors and posts. I was following this doc: Mongoose Query Population. My thought is that at the lines 34~37 will duplicate the posts. Another option is to nest the posts in the Author, but how I will get all posts?. Should I use MySQL?. Am I doing it righ...
Based upon a question from Stack Overflow, I wanted to expand on the answer I wrote and define a solution that would support ordering the strings (after processing).
So this starts off with a basic struct, and you can guess what it's going to do:
public struct Line<T>
{
public int Order { g...
I'm hoping for suggestions of a concise way to write my list comprehension filter in the first solution.
I would also appreciate insight on the underlying reasons for some performance differences in my solutions for Problem 5 (https://projecteuler.net/problem=5). This first solution takes aroun...
I'm trying to loop through a list of variables named a1, a2, etc... and construct the name of the variable on the fly, something like this:
a1 = 7
For RowNum = 1 to 10
MyVar = "a" & RowNum
'use MyVar in calculation
MsgBox MyVar
Next RowNum
The problem is I need the value of MyVar, ...
I have 2 consecutive if cases like this:
if(this == test) {
set a variable
} else if () {
set a variable to something else
} else {
error
}
if (variable set earlier is this) {
do something
} else {
do the other thing
}
do some more stuff
this feels wrong, to have to separate if cas...
