We do constant traffic with our Redshift tables, and so I created a wrapper class that will allow for custom sql to be ran (or a default generic stmt), and can run a safe_load where it first copies the info to a dev db to make sure it will work before it truncates the prod db. Let me know what I...
Could a Stack<Integer> be transfered to a Stack<Character>
??
Ex.
Stack<Integer> Num = new Stack();
Stack<Character> Ch = new Stack();
Ch.push(Num.peek());
This problem is taken from the book Introduction to Algorithms, Third Edition
By Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest and Clifford Stein.
We define the Josephus problem as follows. Suppose that n people form
a circle and that we are given a positive integer m <= n. Begi...
I currently have an HTML <Table> with all the socket.io-rooms. Client-side, the table gets fetched if you visit the page. If some room gets created or deleted, it get updated with the following code. There's also a button that gets updated to show if the room is full or not.
Now I want to know i...
I'm trying to remove the tmp/letter_opener folder. Everything works fine, just wondering if there's a better way to write it. My next step is to write some tests, to double check that I can only accept those inputs (currently failing)
#my_rake_task.rake
namespace :cleanup do
desc 'Deletes the ...
I'm trying to randomly shuffle an collection of integers within a List and I have came up with two shuffling method that does the job. However, I'm not sure which one works better. Does any one have any comments or suggestions?
public class TheCollectionInterface {
public static <E> void sw...
Counting will start with a given number and end with a second given number.
ex. 5 & 10 = 5 6 7 8 9 10
this is what i have so far
static String next(String base, String n){
int i = n.length()-1;
char digit = n.charAt(i)
int pos = base.indexOf(digit);
n = n.substring(0,i-1...
#!/usr/bin/env python
'makeTextFile.py--create text file'
import os
ls=os.linesep
# get filename
while True:
if os.path.exists(fname):
print "ERROR: '%s' already exists" % fname
else:
break
# get file content (text) lines
all = []
print "\nEnter lines ('.' by itself to quit).\n"
# l...I have a project that is due for my -Into to Java- course which requires me to translate the number range of 1 - 3999 into Roman numeral form. If the number I pick is 0 it will end my program, anything else that is below 0 or above 3999 will result in a loop until the requirements are met. I have...
Not sure how to make the title smaller. I was reading the question A truly amazing way of making the number 2016 and some of the answers referred to programatically determining the answer set.
What I am doing is related to that in concept. Given a range of number 1 to X determine all possible m...
I am trying to write this code for returning the index of peakElement in logarithmic time but my code doesn't return correct one. Any insight is appreciated:
public class PeakElementLog {
public static int PeakElement(int[] nums){
int len=nums.length;
int mid;
if ( le...
i don't want to use synchronized for sizeof method, any suggestion to implement the method thread safe
package com.r.collection.adt;
import java.util.concurrent.atomic.AtomicReference;
public class ConcurrentStack implements Stack{
@SuppressWarnings("hiding")
private class Node<E>{
publ...
The goal of this project is a bit technical but hopefully to have someone to advise me better.
Note that I work in a multi-clustering context, which means that I have the same program running on multiple machines.
First, I have a producer who send me the events that need to come in order when t...
I have found the Dynamic Time Warping (DTW) library which coded in Java. Floating point array (float []) as an input and pass by JSP.
However, I have triple confirmed that the huge memory usage problem is caused by the DTW library.
Java always prompt me that "java.lang.OutOfMemoryError". Besid...
I've had a doubt about something.
Let's say I have 4 variables, A1, A2, B1, B2.
If A1 > 0 or B1 > 0, I have to check if A2/B2 is also > 0.
What I have is the following but I'm finding it a bit redundant.
IF A1 > 0 THEN
IF A2 <= 0 THEN
DISPLAY ERROR
END IF
END IF
IF B1 > 0 THE...
my Goal like this :
for do this I write these Codes:
First:
public virtual PartialViewResult DropDown(Guid? selectedId)
{
var categories = CategoryDropdown(selectedId.HasValue ? selectedId.Value : (Guid?)null, null);
return PartialView(MVC.Admin.Category.Views._CategoryD...
I have a page with a few options that the owner of a site needs to be able to set. He's not a coder and I'm trying to make it as user-friendly as possible.
It works, but my implementation feels sloppy and I was wondering if there's a better way to do it.
This first part from my main javascript ...
Few months ago i wrote PathTracer on Java. This is my first Java project and i want to know things, which i did wrong, ralated to Java.
https://github.com/sanex3339/PathTracer-Java/tree/refractiveSurfaces
Please, ignore formatting like
return explicitLightSamplingColor
.add(
...
Indexing a book. Write a program that reads in a text file from
standard input and compiles an alphabetical index of which words
appear on which lines, as in the following input. Ignore case and
punctuation. For each word maintain a list of location on which it
appears. Try to use Hash...
origSRTFile = 'D:/Torrents/test.srt';
newSRTFile = 'D:/Torrents/tested.srt';
deltaTime = [0,0,0,0]; #[hh,mm,ss,ms]
shiftIndicator = 1;#[1 to increase(delay) 0 to decrease(advance)]
inputTimeFormat = ('0','1','2','3','4','5','6','7','8','9',':','-','>',',',' ');
import mySRTConfig;
import ...I will design a list with a Font-Awesome design arrows.
My code already works fine, but I will improve it.
css code:
ul.long_arrow_right_red,ul.long_arrow_right_gold {list-style: none;}
ul.long_arrow_right_gold li:before {content:"\f178"; font-family: FontAwesome;display: block;float: left;...
I was inspired by a certain recent question to try my hand at this challenge:
Project Euler #34: Digit factorials
\$19!\$ is a curious number, as \$1!+9!=1+362880=362881\$ is divisible
by \$19\$.
Find the sum of all numbers below \$N\$ which divide the sum of the
factorial of the...
I want to increase the efficiency and time complexity for the n-queen problem in n*n matrix chess. I am able to run only still (11*11) in normal time otherwise for the big number it is taking much more time. How can I improve performance?
import time
start_time = time.time()
def queensproblem(...
I'm taking Harvard's introduction to computer science (cs50) course online, and I've written a program that satisfies a coding challenge but I don't understand what I did or how I can improve it. I'm a very green programmer.
The challenge is to get an int from the user between 0 and 23 and use t...
I am working on a project that has a Model-View-Presenter framework and use the delegation design pattern that has the following structure/implementation. Would love feedback. Thanks
The ViewController will setup the MVP triad:
class BookViewController: UIViewController {
private var bookM...
Previously I had been using an array of bool(dead/live) to represent cells. I looked on code review to see how other people have implemented Conways Game of Life. Someone in the comments of a post suggested using an unordered set to only store live cells. This sounds like it would be more effi...
So I have designed a "type store" in C++ that can hold a single instance of any subclass of a defined type.
Here is an example of how it would be used:
class BaseClass { };
class FirstSubClass : public BaseClass { };
class SecondSubClass : public BaseClass { };
TypeStore<BaseClass> store;
// ...
This method find cells that are crossed by line A-B and adds them to one vector.
I have got some duplicates here and some lines of code are very similiar but they differ in one variable. Should this duplicated be fixed or is it fine?
std::vector<Cell> Grid::findCells(int xA,int yA, int xB, int...
I have a simple base class and two derived classes. However, when I'm creating new instances of that class, the line where I instantiate the variables is getting way too long.
I have it on two lines:
private Bot Bot1 = new Bot(10000, AnchorStyles.Left, "Bot 1", 2 (int)UsersProperties.CUser.Bot...
I have class SimpleBridge (hard to say if it is the most suitable name, due to its purpose) that uses non-related class CodeGenerator.
class SingleBridge extends ElementListSetting
{
use CodeExport;
protected $SingleBridge;
public function __construct($Element)
{
try
{
if(empty...
I took some time to create a function, which can validate which keys you input on an element. So far it has two uses:
You call .validate() on the object, but make sure it has a data-match attribute with the regex in it
You call .validate("REGEX") on the object, but replace REGEX with your actua...
public class MergeSortImplementation {
public static int[] merge(int[] arrayA, int[] arrayB) {
int n = arrayA.length + arrayB.length;
int[] mergedArray = new int[n];
int x = 0;
int y = 0;
int a = 0;
int b = 0;
for (int i = 0; i < mergedArray.length; i++) {
...
