Loops are a type of control flow structure, in which, a series of statements may be executed repeatedly until some condition is met.

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Slider php loop

I am working on a image slider for a website, the user can add up to 0 - 3 images to the slider. You can see how I did this below, what kind of loop should I use to make this code more efficient and ...
4
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1answer
58 views

Armstrong numbers in a given range using Java 8

Was fiddling with java-8; trying to write a program for getting all Armstrong Numbers between 1 and 10_000_000. Following is my ...
7
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2answers
752 views

Looking for primes with all-different digits

I recently answered a question on Mathematics Stack Exchange, where I used a small Python program to check the following : For all 6-digit numbers, with all digits being different, choosing the ...
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1answer
33 views

Synchronous loop with internal asynchronous calls

Below I've written a simple version of what I'm attempting to accomplish. I'm new to asynchronous functions, so it's difficult to wrap my head around this. My goal is to wait for the loop to finish ...
3
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1answer
31 views

Babysitting a server reboot

I'm looking to improve a loop within a script that performs scheduled server restarts. Currently, I'm using a DO While loop with an exit condition within an IF statement once a counter reaches a ...
1
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1answer
39 views

Solving for a seed value in R

I'm trying to reproduce a gbm model which was estimated without a set.seed value. To do so I need to determine what seed was ...
2
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1answer
32 views

Converting values to Dates in column

I'm not happy about my code, but is the better way that I find, I'm not happy because I see that there are many code repetitions and when any change is easy to make mistakes. Do you think you can do ...
4
votes
3answers
127 views

Producer/consumer problem with four priority levels

Here you can see a mediocre code of mine where I have fun with four deques, each with a different priority. Here is how it works: in a ...
2
votes
1answer
99 views

Find the number of possible infinite cycles that Bessie the Cow can get stuck in

Bessie the cow is in Farmer John's field. The field is of size 0..1,000,000,000 for x and y. Farmer John knows that there are N/2 wormholes at certain coordinates, but he does not know which wormholes ...
6
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3answers
78 views

Loop through a unique combinations driven by choices

I am trying to optimize my code and make it as fast as it can be, I have researched as much as I can and am now asking the community for any tips because there are definitely people more experienced ...
11
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4answers
590 views

Copying values from one sheet to another

I am trying to copy values from one sheet to another using loop with two conditions and it is very slow. Removing conditions from code doesn't have any effect on the speed of the execution. I already ...
1
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1answer
39 views

Event handler for conditions

I am trying to detect whether a condition is being returned true or false. The only problem is, I have a bunch of if/else ...
0
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1answer
38 views

How to generate Datarows based on a delimiter in a Datacolumn from a DataTable in C#

In my office, we use a software called Blue Prism, a Robotic Process Automation System. The idea is to allocate tasks for the robots to perform thereby simulating users. The system enables you to use ...
3
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1answer
43 views

Add Field To PDF with Options for Multiple Pages

This is related to here and here. These two methods are used to programatically add a text field to a PDF document. The field can be of any user determined size and have any user determined title, and ...
3
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3answers
106 views

Find majority element in an array given constant external space

Given constant external space (yes no HashMap), how would you improve the following code (code-wise or complexity-wise with stress on the latter) to find the ...
3
votes
1answer
94 views

Python program to lock and unlock files

The code takes srcPaths and actionType as parameters. The former is a string with tab-delimited file paths, while the latter is ...
0
votes
1answer
64 views

Load title from database based on member country

As tim suggested, some changes to the database was necessary. I have posed an improved version of this question at Get title from database based on member country. I have the following database: ...
4
votes
2answers
101 views

Optimise nested loops used to compare champions which have abilities which have effects

I'm creating a counter picker for a game called League of Legends, and for this I need to compare effects of abilities, which each champion has. For this I'm using 4 lists of champions, the returnList,...
3
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0answers
51 views

Optimising looping through large data set and updating database

I have a database table storing information about documents (MigrationMaster). There is another table with security information on these (DocumentSecurity). There are 4 steps I can see that I need to ...
3
votes
1answer
51 views

Extracting coordinates file that are inside a bounding box

I'm scanning a CSV file to see which values fit inside of a given box. The CSV file has X and Y coordinates, and the arguments to the function are the perimeters of a box (i.e, top, bottom, left side, ...
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1answer
63 views

Shell command line program

I have refactored a for loop into a function. I'm still a beginner at using C utility functions such as strtok, ...
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1answer
60 views

Exponentiation using while loop in Python

I could not think of any better way to raise to power, except this, but how do I refactor it? I should only use while loop, not for loop, not x**y. I shall not use pow(x,y) ...
4
votes
4answers
109 views

Advent of Code Day 6: toggling lights in a grid with Powershell

I am using the "Advent of Code" series to help with my PowerShell education. The Day 6 puzzle has a 1000 × 1000 grid of lights. After processing instructions to turn on, turn off, or toggle rectangles ...
7
votes
1answer
967 views

Drawing the flag of Liberia

I am working on this assignment to draw the flag of Liberia for my essentials of computer programming class. I finished it but had extra time to kill and noticed that a couple similar blocks of ...
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1answer
32 views

this procedure basically gets a sentence of the user and the splits it up into its position values and writes them to a file

this program does work entirely without any errors appearing however I would like to shorten it down to make it more reliable and neat ...
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0answers
135 views

Google CodeJam 2016 - Ruby - Counting Sheep

https://code.google.com/codejam/contest/6254486/dashboard#s=p0&a=0 I just wrote a small Ruby class to solve the first of the challenges in the G CodeJam. I am not strong at this sort thing so ...
10
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5answers
834 views

Finding two consecutive triangular numbers with a given target sum

I need to speed up this code so it can handle inputs in the thousands. It adds triangular numbers to a list based on input n, then it loops through to find if any two consecutive numbers squared in ...
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1answer
55 views

Methods to check form validity and to count invalid form fields

I have two these methods. Their loops are pretty similar. I'd like to refactor it to avoid duplicate nested loops. How could I do that? ...
3
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0answers
118 views

A general iterator to replace “non-standard” C-style for loops

Since the deprecation of C-style for loops in Swift 2.2 (and the removal in Swift 3), several questions about the possible replacements were asked on Stack Overflow. In most cases, a ...
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2answers
80 views

Product of 2 numbers equals sum of numbers between them

Problem: Find all the pairs (a, b) whose product is equal to the sum of all numbers in the sequence [1..n] excluding both a and b. I have made code for one program and need refactoring for code to ...
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1answer
53 views

Nested loop to transform MongoDB results

I have the following structure returned from MongoDB: ...
5
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3answers
161 views

OnStartApplicationsCommand function

The foreach loop seems ridiculously lengthy and I am trying to get rid of it altogether is possible. But there are a lot of things happening in there which I need ...
3
votes
1answer
61 views

Learning nested for loops in Python with Pig Latin translator

I've been trying to learn Python for a bit now. I've taken a few courses, but I've found that I've been going about them wrong and had allowed them to "hold my hand" too much. I'm trying to build ...
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2answers
46 views
2
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1answer
212 views

Calculating all possible Knight turns (Chess)

I'm creating a console application that takes as input starting column and starting row, also the ending column and the ending row and it's going to output all the possible way's to get to that point ...
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0answers
117 views

CasperJS continue equivalent inside for loop with casper.then

CasperJS doesn't allow continue statement inside a casper.then functions. This was my solution but I'm not happy about it. Is ...
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1answer
84 views

Four-function calculator with a text menu

This code works but I don't know if I am doing this correctly. I want to have a do-while loop for the menu and app. How could I ...
2
votes
1answer
53 views

Nested loops - Random Forest, multiple parameters

I'm writing a code which task is to grow Random Forest trees based on multiple parameters. In short: Firstly, I declare a data frame in which model parameters and some stats will be saved. Secondly, ...
2
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1answer
60 views
3
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2answers
226 views

“Guess my Number” game in Python (2.7.9)

First time posting to Code Review. Just looking to get some advice on how I can write better code. I found the following exercise for a "Guess my Number" game on DaniWeb, but the linked source code ...
3
votes
0answers
102 views

Basic game engine: timer, FPS and logic loop

I'm creating a simple Java game engine (just for fun). The idea is to create a basic framework for developing any kind of 2D game, an abstract engine that does the hard work. Would you like to review ...
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2answers
47 views

Partitioning an array of objects into four arrays by one attribute

I have an array of API objects, below is an example of one object: ...
0
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2answers
61 views

PHP alternative syntax confusion

Newbie to PHP. Trying to output the results of an array inside a foreach loop. I have got the following code but I cannot understand what to do with it next. Mainly; Where/how do I start and end ...
4
votes
3answers
220 views

Using Enum to Handle String literals

I have a java component that was using a lot of string literals that I need to make comparisons on and return booleans based on these comparisons. In order to make the code more robust I externalized ...
4
votes
3answers
81 views

Extracting sleep quality scores from periodic readings

How can I optimize the next function to work faster? The function must prepare a list to put in a CSV file. The list must contain values of average percentage of sleep per minute counted from ...
3
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1answer
55 views

Simple load testing script in bash

Here's the code ...
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3answers
66 views

Reading denormalized data using a stateful loop body

I'm reading denormalized data with a SqlDataReader, the data has this form: ...
1
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1answer
56 views

Transforming a list into a dictionary

I have a simple list and want to filter it by a specific key. But I guess my for loop solution is not an efficient way. I'm searching an other way or one best practice. ...
3
votes
1answer
120 views

Tail-recursive call vs looping for a Poker app

I'm developing a Poker app. It is almost done, and I'm looking for improvement. One of the things I wonder is whether I should change how I perform iterations. I currently iterate by using tail-...
1
vote
1answer
54 views

Return Object[] while connecting to DB once

I have written this code according to my requirements. But after finishing the code, it looks like there are too many loops. I have reduced it as much as I can. Can you find any improvements that I ...