I'm trying to figure out how to put a live countdown on my site. It's a gaming site. The countdown needs to be displayed several times with different times based on a unix timestamp derived from a php value.
This code will return a list of the prime factors of n, and the prime factors are repeated so that the product of the list is equal to n.
import math
def product(iterable):
"""
Returns product of all elements in iterable
"""
p = 1
for x in iterable:
p *= x
ret...
Consider the following piece of code.
public static String[] choosePatterns(int total, int toChoose, int numOfPatterns1) {
String[] deletionPatterns = new String[numOfPatterns1];
int x = 0;
StringBuilder data = new StringBuilder("");
List<Integer> indices = IntStream.range(1, toC...
There are different API aggregators. Cloud Elements, for example. Do you use them? What would you say about Unified API service in which all the data is directly transferred between an app and third-party services? So, the service that is not middleware, so it is not exposed to security breaches ...
//**1. (25 points) Design a Java application that will read a file containing data related to the US.Crime statistics from 1994-2013. The description of the file is shown below. The application should provide statistical results on the data including:
a. Population growth in percentages from each...
How can I do this in PHP?
f = File.readlines("shading.txt")
$i = 0
$switch = 0
open('shading_out.txt','a'){|g|
while $i < f.size do
if f[$i] == f[$i+1]
g.puts ($switch).even?.to_s
else
if $i == (f.size-1)
$switch-=1
g.puts ($switch).even?.to_s
...
I took a stab at solving this problem from Hackerrank in Javascript, and would like your valuable feedback as to time/space complexity and just about any additional improvements.
Problem URL: https://www.hackerrank.com/challenges/cut-the-sticks
My JS implementation:
function main() {
...
**int getAge() {
int age=0;
cout<<"What is your age? :";
cin>>age;
while (age<=0){
cout<<"Age must be greater than or equal to 1."<<endl;
cout<<"What is your age? :";
cin>>age;
}
return age;
}**
Above is my code and I am trying to return the value age in my main but when I call the...
Given a set of item with a weight and a value, this problem gives the subset of items with maximize value so that their combine weights is less or equal than a given max weight. This solution runs in \$O(w\cdot n)\$ where \$n\$ is the number of items and \$w\$ is the max weight.
#[derive(Debug, ...
I have a solution with several library projects (+10 and growing) where some of them contain reference to other projects within this same solution.
All those libraries should be available as NuGet packages. To make the package creation process easier I established the following rules:
Each pac...
I've written a tiny web crawler in Ruby and am wondering if someone has any suggestions regarding the design.
Right now, I have a module called RubyCrawler and I can configure the crawler from there, as such:
RubyCrawler.configure do |conf|
conf.polite = true
conf.start_urls = ['http://myweb...
Task description:
Search the highest ID within a given JSON-structure: An array with objects as elements. Every object has a property "ID".
Then increment the highest ID and return it as a result. For to become the next ID used.
There can be gaps within the given data-structure (because of pri...
I have a simple little game with one character as the player and four enemy characters. I created a very basic AI, that moves towards the player when the player is nearby. That all worked fine, but when I added AI-AI collision (using a bounding box model), it slowed it down tremendously, and expo...
The code is in this repository here. It uses node.js, MongoDB, and the telegram-node-bot library for integration with Telegram. I'm mostly interested in whether the code is understandable as well as whether it is performant.
Hello there fellow aspiring developers. I have only been self teaching myself programming on and off for about 5 months. The purpose of me writing this class is to incorporate the knowledge that I have gathered since I started. I'm still learning about OOP in general so please don't tear me a new...
Write a program that asks the user to input 10 integers, and
then prints the largest odd number that was entered. If no odd number was
entered, it should print a message to that effect.
I'm trying to create a data structure that has the following properties:
must be able to perform a binary search based on a on-the-fly computed value
ideally must have an O(1) insert and delete performance
All items in this data structure have a double value x.
class Item {
public:
doubl...
I have tried a naive way to solve this problem but end up with TLE, could not be able to think of optimized solution, need help to make a breakthrough... thank you.
#include <bits/stdc++.h>
using namespace std;
int k;
int ones(int n){
int cnt=0;
/* while(n){ */
/* n=n&(...
For a few years, the founder was unhappy about the technical skills of the employees, and he recently hired a senior developer for the double role of technical lead and project manager. He was the only one doing an interview, and the only one deciding to hire this person.
Sounds like the fou...
I was trying to create a function to delete the node at index i from its current position and insert it after node at index j from a std::vector<Node> nodes. These container is logically a circular container of nodes, that is there's no actual first or last node, i.e. after nodes.back() comes nod...
I've been doing some 3D graphics in OpenGL lately and I needed a way to work with 4x4 matrices. My implementation supports the following operations:
Matrix-matrix addition.
Matrix-matrix subtraction.
Matrix-matrix multiplication.
Transformation matrix creation.
View matrix creation.
Perspective...
Revision 1
Suppose I implement the Dutch national flag problem and want to test if my implementation is correct. I write the following method verifyDutch which should return -1 if elements of the given array have been reordered correctly or the index of the element which is in the wrong place.
...
I am using Mongoose ODM and Nodejs to implement CRUDL operations on MongoDB for further use with REST API.
Initially I've implemented functions using Promises but then switched back to callback style.
My questions are:
Should I stick to traditional callbacks or to default Promises?
In this co...
Python lacks dynamic unpacking. Example: You want to unpack a list, let's say coordinates, but don't know whether it contains 3 items or just 2.
x, y, z = [1,2,3] works only if len([x,y,z]) == len([1,2,3]).
x, y, z = [1,2] results in an error. You could add try and except blocks but that could ...
I am getting an error code stating that rate is not initialized. Can you look at my code see how i code fix it. Here is my code:
public static double getSubtotal(){
double rate;
double subtotal;
if (getUsage() <= 500) {
rate = .0809;
}
else if (getUsage() >= 501 && g...
I've just again realized that we have a join tag, which corresponds to SQL. It doesn't appear that the questions have anything else in common, either. Do we still need it?
Burn it.
Pretty much all SQL queries use joins in one form or another. I think that having sql is on its own sufficient and it should be assumed that any SQL question could have joins, making the use of sql join redundant.
I'm writing a weight training app that calculates a one rep maximum and it has several options including recording your lifts in pounds or kilograms. I'm trying my best to follow the MVC pattern but I'm not entirely sure where to do some calculating and formatting.
I have a UITableView to displ...
So yesterday i was bored and decided to write a random password generator.
At first it used numerous temporary files, changed that by using arrays.
Written on OS X, should work on linux with minor tweaks (at least change all gshuf to shuf)
Example use:
$ pw -c 3 -l 20 -a b -nsr
Vh.9"7`gN;;$...
