How to Find the Longest Substring in Alphabetical Order in Python
The challenge
Find the longest substring in alphabetical order.
Example:
the longest alphabetical substring in "asdfaaaabbbbcttavvfffffdf" …
Technical Articles
In-depth guides, insights, and best practices for modern software engineering
Calculate the Most Frequent Weekdays in Go
The challenge
What is your favourite day of the week? Check if it’s the most frequent day of the week in the year.
You are given a year as …
Read Article →Return Index of Matching Closing Bracket in Go
The challenge
In this challenge, you will be given a string with brackets and an index of an opening bracket and your task will be to return the index …
Read Article →How to Presign an S3 URL in AWS using AWS CLI
You can use the AWS CLI to presign URLs so that objects in S3 can be shared publicly even if they are set as private.
Presigned URLs are great for …
Read Article →How to Download using Aria2c with Multiple Connections
If you use aria2c to download files using the command-line, then you can also use it to download using multiple connections.
aria2c -x16 -s16 …How to Parse HTML/CSS Colors in Java
The challenge
In this challenge, you parse RGB colors represented by strings. The formats are primarily used in HTML and CSS. Your task is to …
Read Article →Solving Simple Transposition in Java
The challenge
Simple transposition is a basic and simple cryptography technique. We make 2 rows and put first a letter in Row 1, the second in Row 2, …
Read Article →How to Binary to Text (ASCII) Conversion in Python
The challenge
Write a function that takes in a binary string and returns the equivalent decoded text (the text is ASCII encoded).
Each 8 bits on the …
Read Article →How to Find the Row of the Odd Triangle in Python
The challenge
Given a triangle of consecutive odd numbers:
1
3 5
7 9 11
13 15 17 19
21 23 …Solving Number Zoo Patrol in Python
The challenge
Write a function that takes a shuffled list of unique numbers from 1 to n with one element missing (which can be any number including n …
Common AWS CDK CLI Commands
The AWS Cloud Development Kit (CDK) comes with numerous CLI commands.
| Command | Function … |
|---|
How to Create an S3 bucket with PublicRead in CloudFormation
AWSTemplateFormatVersion: 2010-09-09
Description: Basic S3 Bucket CloudFormation template
Resources:
S3BucketForWebsiteContent:
Type: …