I am trying to solve the "Stacking boxes" problem. I know how to solve the most common version in which box can be rotated and each box can be used multiple times.
This particular variation that I am having trouble is with one constraint that each box can be used only once.
I found this proble...
In order to process a lot of large log files, I want to find the fastest way to read file.I've tried several ways as follows.
1.OOM
try {
List<String> lines = Files.readAllLines(file.toPath());
int linesCount = lines.size();
for (int index = 1; index < linesCount; index+...
The follow is a component for a form which uses React JS to render an HTML form. It sends a POST request asynchronously. I need some eyes to tell me if this is the best practice.
hunter.js.jsx
var HunterForm = React.createClass ({
submit: function() {
$.ajax({
type: "POST",
ur...
i make External class hierarchy in Codeigniter for my app.
as shown below.
Class Hierarchy
those classes are located in libraries folder.
whole project file structure is shown below.
Codeigniter folder structure
Project
|
+-- controllers
| |
| +-- App.php
|
+-- models
| | ...
I want to confirm that NFS client cache on a Linux machine will be cleared on upgrading the kernel.
Input:
Input contains one string 𝑆 which consists of big and small latin
letters, digits, punctuation marks and brackets from the set []{}().
Constraint:
Constraints. The length of 𝑆 is at least 1 and at most 10^5
Output:
If the code in 𝑆 uses brackets correctly, output “Succ...
I have the following functions in JavaScript:
function SelectFirstVisiblePublicationAndHideIt ( PageObj )
{
var hideButtonXpath = "//img[@title='To hide this item in your profile, mark it as invisible']";
var hideButtonArray;
var numberOfHideButton;
var publicationTitle;
aqU...
I wrote a game solver similar (but with reduced features) to an application called GamesmanClassic but in C++. The general idea is that (roughly speaking) board games can be represented with the four following functions:
initial_position -> Starting board position
generate_moves(pos) -> Gener...
I'm creating a list of primes and keep checking any new number for divisibility with only prime numbers. I thought it should take less time but it is going over 4 minutes. How should I approach such a problem?
#include<iostream>
#include<list>
#define X 2000000
using namespace std;
list<long ...
I'd like some feedback, if possible.
I 've followed the steps from this video from railscasts for setting ENV variables. This is my configuration
# config/database.yml
default: &default
adapter: mysql2
encoding: utf8
pool: 5
username: <%= ENV['DATABASE_USERNAME'] %>
password: <%= ENV[...
Its been years (10+) since I have worked with sorting algorithms directly. So I have been trying to go over them again to refresh my memory. The thing is my ideas of how to do it doesn't seam to match the way I have the tutorials doing it.
Does it matter? Assuming that my code is working I wou...
The details are:
1.store flight number using numbers(max 4),flight name,origin-destination and fare.(menu)
2.10 flights in total
3.user will only input the flight number to display all flight details
4.after that number of passenger travelling
5.final bill amount
6.It will again display the menu...
I've just refactored some code for a search box which takes a user search term, hits an API, returns a list of possible locations, and processes the users chosen result by sending them to a map page with their chosen result populated in the URL. I'm trying to improve my JS skills from just gettin...
Recently I came across this, here is an excerpt from it,
This is another problem about Indraneel's library. His library has one
long shelf. His books are numbered and he identifies the books by
their number. Each book has a distinct number.
He has lost many books, since many of his f...
How can I format the below xml so the first ExtensionAttribitue is my rows and the second extensionattribute is my columns and the third is my value.
<IntegrationOutputData xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<ExtensionAttribute N...
I'm working on an isomorphic javascript module (query-hash) to handle query strings and base64 tokens. It's essentially a simple key-value object with methods for taking in data and giving it back in the format you ask for.
function queryToObject(queryString) {
return queryString.split('&')
...
I have some problem while doing my project. Currently i would like to update my csv file details. In my csv file there is matric id row, type row, weight row, points row, time row.
my problem is, if the same user use my program, the details of the user will not total up. in this case i would lik...
I have written yet another n-puzzle solver. I used the A* algorithm to search with the Manhattan Distance heuristic. It worked very well for the 9-puzzle (3x3) but was unusable for most instances of the 15-puzzle (4x4.) In fact I would exhaust all RAM before I got anywhere near the result.
So...
I wanted to create containers from other container instances by changing the order of elements in a stridden pattern such as following:
[1, 2, 3, 4, 5, 6, 7, 8]
with factor of 2 as stride turns into:
[1, 3, 2, 4, 5, 7, 6, 8]
I try to keep it as generically as possible I can.
If I have reinve...
I created an objects with two attributes, i need send that object as method attribute from another method and accede his attributes for search "type" of "torta" in method "order", ¿how can i do it? This is my code:
$tortas = { "milanesa" => 5, "hawaiana" => 10, "cubana" => 15 }
class Torta...
The app is functioning but I am not sure if I have done it properly.
The code is present in my github repository.
The demo can be viewed here.
Please let me know where can I improve the code?
app.js
require('./map');
import React from 'react';
import ReactDOM from 'react-dom';
import Containe...
I am trying to fully understand interfaces and abstract classes in Java and from what I understood, I created a sample console application. Is there an error in the design or is this basically what interfaces and abstract classes are?
Animals.java (interface):
interface Animals {
void call...
Overall, it seems like your implementation is fine and accurately represents the relationships between the different classes and interface. You could improve on your design however if you would consider some style guides.
Explicitness
The default modifier for your classes / interfaces will mak...
This is my first attempt at creating a ruby script. I set up a Cron job to run this script every hour. Requesting constructive critiques and suggestions for making this better.
Sidenote: I've hard coded the location to my hometown. I don't plan on changing it to another location.
#!/usr/bin/env...
I'm trying to be as defensive as possible, will this leak memory? It runs perfectly I'm just concerned about coding style and best practices. Especially regarding the allocation I'm not 100% convinced of my solution. Is it okay to allocate memory for the next component inside the constructor?
/...
I've got a solution for Project Euler's problem 45 that runs in under a second (so performance isn't an issue), but I can't help but feel that I'm doing it in an ugly way; I feel like I'm missing some sort of builtin like zipWith3.
Here's my current code:
tris = scanl (+) 1 [2..]
pents = scanl...
I am using the SICP book. There is an exercise in which you need to create a function that will receive a list as an argument and return a list with the same elements in a reverse order.
I know there are more efficient solutions than the one I am going to present. However, I really learn by anal...
On some sites, there are simple heuristics to detect problematic questions. By detecting a few problematic keywords, we can easily alert posters to potential problems before the question is even submitted.
For example, Code Review has been requesting these automatic alerts for over half a year:...
Hide deleted posts by default.
This has two implications, that I can see: First, if hichris123's suggestion is implemented, it will prevent spam from even being effective against most users. Second, it is annoying to read a bunch of really good content, then to be slapped in the face by trash, ...
I am looking for a way to optimize this code so that it runs faster. I am trying to calculate the total items used, if for every x items used, you get one additional item to use.
This is the code I currently have. I get the correct result, but with a large amount of items, it is taking too lon...
