I have a comparator function I use with qsort to sort an array of char* (i.e., char**), which compiles with current versions of Clang and GCC without giving errors or warnings:
static int
comparator(const void* a, const void* b)
{
#ifdef __cplusplus
auto a_recast = const_cast<void *>(a);
...
I am pretty new to Java and I got a requirement of converting Strings to a json structure. My below codes works fine but I have to create multiple objects and my code looks bit ugly. I want to know the better approach.
I want the below Json Structure from three Strings SourceApplication, messag...
Basically, I declared a char array to hold a maximum size of 100 char arrays.
#include <stdlib.h>
#include <memory.h>
#include <stdio.h>
int add_to_urls(char **urls, char *url) {
for (int i = 0; i < 100; i++) {
if (urls[i] == NULL) {
urls[i] = malloc(sizeof(strlen(url) +...
import React, { Component } from 'react';
import { connect } from 'react-redux';
import { login } from '../../redux/reducer';
import { LoginForm } from '../LoginForm/LoginForm';
import { BrowserRouter as Router, Route, Link } from "react-router-dom";
const HomePage = () => (
<Router>
<div>
I have such part of function:
$token = $this->getToken($user);
if ('main' !== session('type') && is_null($token)) {
$instagramProfile = $this->findInstagramProfile($user);
$token = $instagramProfile->profile->user->api_token ?? null;
} else {
if (!$instagramProfi...
I have written the code but it is printing the count as 0. I am unable to find where my code went wrong. Can anyone help me in resolving this error?
My python code:
def uppercase(files):
count = 0
for ch in files:
for c in ch:
if c.isupper():
count += 1
...
How can I optimize the following function? It checks whether two strings have a certain number of similar characters. As of now, it is very slow. I tried it on a directory containing 81 files, each containing varying number of lines:
#include <stdio.h>
int overlap(char *str, const char *substr,...
how can I optimize the following function? It calculate percentage of parcel dedicated to building (ces). As of now, it is not very "clean". bati is buildings and parcelle is parcels. Data are here : https://cadastre.data.gouv.fr/data/etalab-cadastre/2018-01-02/geojson/communes/14/14007/
def ces...
I'm trying to implement a Reinforcement Learning Agent for the game Lights Out which is specified here:
https://www.hackerrank.com/challenges/lightsout
The code so far: https://github.com/BugsBuggy/RL-LightsOut
The problem is: the agent is not converging towards a policy. It is not learning any...so I've been working on a task. I have two giant strings, both consist of the same characters just scrambled. The task is to find the lowest possible number of changes you can make to turn the first string in the other one, while 1 change = switching neighbour chars in the string. I found a solut...
I am writing API in Kotlin - this is my first code in this language. I implemented a very primitive 'player' endpoint. I was wondering if I am doing everything ok (please don't mind the static variables - I will put them in the database later)
import org.springframework.http.ResponseEntity
impo...
I have written a module for parsing a format used by the Defold game engine, it is essentially the google protobuf format, but with a lot of custom things to support how they handle internal things.
I would like to have the whole code reviewed, but seeing that it is fairly big (800 lines) I ass...
I am working on a task and the idea is working. Since it's on a online judge I get few AC, but others are TLE. Can anyone help me to make my code faster?
Link to the problem: https://www.hackerrank.com/contests/w37/challenges/dynamic-line-intersection/problem
My code (cpp):
#include <bits/stdc...
This is a follow-up from my previous post, which can be found here. A readme for more detailed information can be found here.
It is a library to create console based tables where you can insert, remove and update entries. An example could look like this:
+---------------+-------------+----------...
I have posted this in continuation to my earlier post Quadratic equation solver in JavaScript.
Tried to improve on the shortcomings last time and also changed the logic. It is still not covering all the input cases. Planning to improve it over time with feedbacks.
Recently started learning abou...
I've recently caught an odd behaviour in my own coding: At some point in the last year I began creating protected static methods to implement the logic of my public methods, ensuring that the protected static version contains all of the logic, but is not affected by state.
e.g.
class Demo
{
...
I'm trying to achieve fine-grained throttling with aiohttp.
By fine-grained, I mean that controlling how many requests and simultaneously executed is not good enough, I want to rate-limit the number of requests such that I have 100 requests per 10 seconds interval.
Here is my code:
async def f...
The following Python program generates heat maps of the roots of Littlewood polynomials as shown in [this link (see last section)][1]. It works fine with a small number of roots, however I tried to use 2^21 in the first loop and it ate up 12 gigabytes of RAM on my computer. How can I make it less...
Below code snippets shows how to remove duplicate integers from an array without using any collections such as HashSet, ArrayList etc...
I have a sequence (in this case actually an array) like this...
[| 1; 2; 3; 4; 5; 6; 7; 8; 9; 10|]
...and want to produce a sequence of pairs like this...
[(1, 2); (3, 4); (5, 6); (7, 8); ...]
The following code works, but I can't help feeling that it's a lot of code. Is there a shorter, mo...
there is event system implementation for C++.
I'm targeted on following features:
RAII-friendly
any number of event parameters
ability to use member functions, free functions and lambdas as well
almost c# like usage
Now i'm looking for review, ideas and critique.
The current solution for ...
I wrote an implementation of circle - line segment collision detection algorithm. Here is quick demonstration how it works:
And here is my implementation in Javascript using HTML canvas:
index.html
<html>
<head>
<meta charset="utf-8">
</head>
<body>
<canvas id="can...
I have a list of strings that represent a path. These are unique, unsorted values that look like this:
li = ['1/', '1/2/4/', '1/23/4/', '1/2/', '1/1/3/', '1/2/3/4/', '1/1/', '1/23/', '1/2/3/']
It can also be assumed that every path has a parent, e.g. 1/2/ has parent 1/.
The goal is to organis...
I have a variable that looks like this: path = sys.argv[0] which path will equal something like this: /root/home/user/dir/program. I want to remove /program from the string so it looks like /root/home/user/dir. How exactly would I do this?
This is front end code for a search feature. It uses the users search query to return an array of matching characters, which then gets displayed in a search list for the user to view and select. Please let me know how I can shorten, simplify or improve this code. Thanks for your time!
//Champ Se...
Right now my route is doing the following:
Searching the post
Check if user already likes the post
If likes inc likeCount and push user_id to the likes array of the current post and vice versa (dec, pull)
Adding post id to myLikes array of user and vice versa
Any thoughts / suggestions on th...
This is the first program I have tried to make. Its written in Python 3. I have noticed when the game finishes, the message is printed twice but I cannot see why.
Any help regarding this or any other improvements are appreciated. Thanks.
#Grid
grid = [0, 1, 2, 3, 4, 5, 6, 7, 8]
print("Welcome ...
Currently, there are 62 questions tagged vectorization, nearly all of which say "The performance sucks; how can I vectorize this code?".
Recently, How to efficiently apply correction to a time series with fully vectorized code in Matlab was closed, with this comment:
This question is off-top...
The vectorization seems to be misleading, a possible solution to this problem would be to create a new tag, vectorized and clean up the aftermath.
This would let users know that the tag needs to be used for questions where the code has already gone through the vectorization process and are now v...
I do not understand how to allocate a python dictionary. I was hoping someone could point out my error. If this is not the right forum, please help me out and point me to the right one.
This is my code:
msg = {'fees': ['GMBk8YVHn2', 2, 'C4xbW4SR'] }
fees = getattr(msg, "fees")
Traceback (m...
rolfl's argument is that "I would like to vectorize this code to make it more efficient. Does anyone see a way to do this?" is off-topic because it asks for the code.
I disagree with this. "How do I vectorize this code" is a specific refactoring question (I believe this has been brought up on me...
This is my second attempt to make Tic Tac Toe in Python. It's a part of my learning. Tomorrow I'll work on some simple AI and better menu. What do you think about it? What changes do you suggest?
Code:
class Field:
val = " "
pos = 0
weight = 0
def __init__(self, n):
self...
I'm having a bit of a debate at work regarding when to replace numeric literals with variable names.
I have a function that reads data from a buffer and after each read, updates the offset so that next time, we read starting at the right offset.
function readMessage(data: Buffer, offset: number...
