Author: Dragos Ion
How to reverse a string in Python 3
To reverse a string in Python the bellow are the best ways so far: Write [::-1] to do slicing in Python starting at first character, until last, step by 1 in reverse (-1). It’s a pretty nice way to impress your imaginary friends. Option 1 Option 2 Whole code demo Write a comment or no,…
How to reverse integer in Python 3
How to reverse an integer in Python 3. In Python 3 int type is the same as long so there is no need to check for int overflow. In other cases you will have to check for integer max value and min value to avoid a stack overflow. The steps are bellow with each testing…
Find the missing number in an array
Computer science job interview question:Find the missing number in the series.Write a program to calculate the missing number in the series of integers. There are multiple ways to do this bu using the Gauss Sum addition method is a nice trick and it’s faster than any brute-force iteration you might think of.More info https://en.wikipedia.org/wiki/Gauss_sum The…
How to take a screenshot on Android MIUi Xiaomi
There are 3 ways to screenshot on a Xiaomi MIUI 12 smartphone or tablet. 1. Swipe down to show the top menu then press on Screenshot.this will take a screenshot and save it for you.2. Press the power button + Volume down button simultaneously. a screenshot is taken in the same way and tou have…
Rocky Linux vs Centos vs Oracle Linux
Since Centos 8 and Centos Stream came out, I’ve been looking for an alternative Linux operating system for our small web-server. The OS could be Debian based but I would prefer it if it’s RHEL based since I’m used to that. What to choose between Rocky Linux vs Oracle vs RHEL vs Centos Stream now.…
Clean C Drive on Windows 10
How to clean C drive in Windows 10 and free up disk space? There are a few ways to remove unwanted old files from your PC.This also will make your PC faster. Before deleting any files make sure you don’t need them as they will be gone. Always make a backup of your important files…
Remove Weather from Windows 10 Taskbar
News and Interests in taskbar Windows 10 has a new taskbar toolbar called News and Interests. This is enabled after the update KB5001391 All the configurations bellow are valid if you have the News and interests feature that comes with the update. If you don’t have the feature yet, you can enable it by installing…
How to take a screenshot on Windows 10 – new, better, faster way
How to take a screenshot on Windows 10 faster new way.A screen capture or a screen print / print screen is taking a photo of your desktop to share or save for later.This is the new improved way in Windows 10 .Showing 3 ways to capture the screen aka. screenshot. Oldest way Hit the Prt…
Royalty Free music for YouTube videos
Royalty free music for YouTube videos is music you can use in the videos you upload and not get a copyright violation strike or a claim on your video that uses that music. Video YouTube Audio Library First option and the best is the YouTube audio library.You should always start with this one when you…
How to enable and use Google Pay in any country with Monese
Google Pay is a really cool way to make card payments using your phone with NFC. NFC stands for Near Field Communication and it enables two devices to communicate over a short distance. Kind of like when you bring your mobile phone closer to a POS machine to make a payment. The problem is that…
