That's already known problem: to return an array of linked lists that contain values of elements at each level. Eg for tree with depth n there should be n linked lists.
I wrote the solution:
public ArrayList<LinkedList<Integer>> levelLists() {
class NodeLevel {
public BinaryTreeNode ...
Please can you check my code and tell about any smokestack
I create login form with session
Four pages
connection.php, login.php,plan.php,logout.php
Database educate(Create table users):
CREATE TABLE users(
id INT AUTO_INCREMENT,
username VARCHAR(50) NOT NULL,
password VARCHAR(100) NOT NULL,...
I am new in Golang, and decided to create a function that could cater to my needs of reading an integer from stdin. I need the function to be as efficient and fast as possible. The code is:
package main
import(
"fmt"
"bufio"
"os"
//"io"
"strings"
"strconv"
)
type NoIntRe...
How can I decompose this code into multiple threads so that it can run in parallel and enhance the efficiency(speed)?
#include <iostream>
#include <string>
#include <vector>
#include <fstream>
#include <cmath>
#include <algorithm>
using namespace std;
//All the D...
I am creating an application to manage the assembly of shoes through a web application.
Could you tell me that you think that is more or you would be missing to be as solid and complete as possible , thinking that no attempt to make a big application (at least initially).
Here's database script...
Code Review Expert (JAVA and HTML5)
VGW Gaming
code-reviewunit-testingautomated-testsjavaTo improve our quality we need someone dedicated to code reviews. You will be getting pull requests, checking the codeā¦
Posted on Stack Overflow Careers on June 23, 2016
I want to check if a file exists in a given directory or in the parent one. So I wrote this code:
if (File.Exists(fileName) ||
File.Exists(Directory.GetParent(Path.GetDirectoryName(fileName)).FullName + Path.GetFileName(fileName)))
However this seems quite odd to me and I wonder if there ...
This a solution to the CodeEval's challenge "Lucky Tickets".
After a failed attempt with brute-force calculations (no surprise here), I have tried to implement an algorithm that I found on StackOverflow.
The code runs without errors and my results match the output given in the example. However,...
I have decided to make a game of text-based Tetris in C.
At first I had no idea how to start so I settled for threads.
Each thread moves its own piece down the grid and all the main thread does is redraw it every 16ms. However now I see that multi-threading a game like Tetris isn't necessary at a...
I need to render polymorphic models in different situations.
Model's base class:
abstract class BaseDiscount {
abstract public function createRenderer(IDiscountRendererFactory $factory);
}
IDiscountRendererFactory:
interface IDiscountRendererFactory {
/**
* @return IDiscountRenderer...
from tkinter import *
# WITH LAMBDA
root1 = Tk()
root1.title("Tkinter With Lambda")
root1.geometry("500x500-800+50")
def update(option):
if option == 'first':
label.config(text=entry1.get())
else: # for 'second' option
label.config(text=entry2.get())
label = Label(roo...
I have a (large) number of nodes and (triangular) cells, e.g.,
cells_nodes = [
[0, 3, 1],
[0, 2, 3]
]
This example represents the small mesh
(Please call me Picasso from here on out.)
Now, I would like to create the edges for these meshes (in red above), specifically edgeānod...
I need to run several identical threads. All threads must wait to do their job, until all threads are running (alive).
I use wait/notify to synchronize: when a thread is created it waits until it gets a notify to continue.
It works, but not sure it's the best way. Is it efficient?
I read from...
I have implemented an event bus library for Java - JBus. Anybody please care to review my code? It is an open source project and link is provided above.
I am trying to implement dictionary. I would appreciate if you find the flaws in my code rather than changing whole logic.
Sample Input
3
sam 99912222
tom 11122222
harry 12299933
sam
edward
harry
Sample Output :
sam=99912222
Not found
harry=12299933
#include <stdio.h>
#include <string.h>
#incl...
I want to create a one time use bitcoin wallet for a client with an attached invoice. Once paid, store the bitcoin temporarily on the blockchain (not my wallet) and with sufficient conformations do a sendmany transaction of differing amounts to as many as 5 recipient addresses.
Meme: [TTQW | TTGH] | TTGTB
Originator: [attributed to] Simon AndrƩ Forsberg (first TTQW here)
Cultural Height: The 2nd Monitor
Background: leaving the chatroom and/or going AFK isn't something we do often. These funky acronyms efficiently communicate that it's either time to quit work (or tim...
This program calculates common factor for given numbers. Original use case is to find possible resolution for pixel games that scale well with new screen resolutions. (That's why I don't have any check and optimizations for big numbers and use simple bruteforce).
(define (fun1 l d)
(if (appl...2 days ago as I was working on my game I decided I wanted to include some sort of a video showing sneak peaks of the themes and tutorials and such. I then decided to check how to record my scene or nodes. After looking around i concluded there was no easy way to do it so I decided to make my own ...
I have a MVVM application that fetches data from active directory and displays it in a DataGrid. The exact data displayed is determined by which query a user runs, and there are multiple available queries. Each query requires slightly different logic, but they all have the same general idea. Thes...
I am new to java and still on the learning process. I would like some help.
Question:
A hotel chain operating in Goa wishes to offer room reservation services. They have three hotels in Goa:GreenValley, RedRiver and BlueHills. Each hotel has separate weekday and weekend(Saturday and Sunday) rates...
In my project, I have 3 payment mode.Via Manually Entered,Via Card Swipe,Via cash. I have 2 fragments named RecordCardManuallyFragment and SwipeCadFragment and they both are almost identical according to functionality except in RecordCardManually you have to type info manually and in swipe card f...
Input: Set of elements (String)
Output: Printing the Elements of the PowerSet of the given set
public class PrintPowerSet {
public static List<String> permuteSet(String inputSet){
List<String> powerSet = new ArrayList<String>();
int n = inputSet.length(); //size for binary
for(int ...
if(!$_SESSION['id']) { // $_SESSION['id'] is undefined if user is not logged in.
function return_error() {
$_GET['p'] = 403; // This is the variable that error.php uses to form the response text.
require_once('./error.php');
die();
}
switch($_SESSION['level']) ...
I'm writing a 3D space graphics program and I just changed the build system to using gradle. This is my first gradle project. It works but I'm sure there is room for improvement.
apply plugin: 'java'
apply plugin: 'application'
apply plugin: 'eclipse'
apply plugin: 'idea'
mainClassName = 'spac...I though this question made a good excuse for some basic OOP code, so I whipped up a little bit of code to demonstrate it in VBA, however I'm not happy with how it turned out. How should I refactor it to be more flexible, OOP-style? The idea is to end up with tutorial-grade code.. and despite the...
I though this question made a good excuse for some basic OOP code, so I whipped up a little bit of code to demonstrate it in VBA, however I'm not happy with how it turned out. How should I refactor it to be more flexible, OOP-style? The idea is to end up with tutorial-grade code.. and despite the...
