Rubin

Given an array arr[] of size N and integers L and R defining the given range, the task is to find the number of elements… Read More The post Count number in given range generated by concatenating two Array elements appeared first on GeeksforGeeks.

If I format a column with mmm dd hh:mm:ss and set a cell’s value to 0, it is displayed as Jan 00 00:00:00. This feels like it contradicts Part 1, Section L.2.16.9.1 of the ECMA-376 standard, which Excel purportedly follows. From the spec: A date that can be interpreted as […]

I am trying to help a colleague connect locally to a linux machine (I believe Debian), which uses TCP wrapper for security. I ssh’d onto the computer and tried to give him access by clearing the contents of /etc/hosts.allow, but failed to make any changes to /etc/hosts.deny. Unfortunately, there were […]

Often I do ffmpeg without intel quicksync, e.g. having made a subdirectory called “a”, ffmpeg -i IMG_0001.MOV -c:a libmp3lame -c:v libx264 -preset ultrafast ffff.mp4 (I know mp3 in mp4 container is a bit old fashioned, and aac is the current convention/standard, but my old video editor doesn’t like aac in […]

I was under the impression that in Windows 10 and 11 Restart was a more dramatic refreshing and house-cleaning than Shutdown. Based on these… https://www.computroon.co.uk/2020/10/16/restart-vs-shutdown-windows-10/ …and… https://docs.microsoft.com/en-us/answers/questions/218345/shut-down-and-restart-in-windows-10.html But this morning my GF was connecting a MIDI keyboard via USB to her Windows 11 Lenovo Thinkpad laptop and despite repeated Restarts, […]

I am trying to add a ASCII asterisk (*) frame around the hello world in a very simple C++ code. It works but gives this strange number before the frame. Here is my sample code. #include <iostream> #include <string> using namespace std; int main() { cout << "Please enter your […]

In a shared Excel document in Sharepoint, I can create named “Sheet Views” in the View tab. Each sheet view has a saved filter. I would like to be able to create a link that opens the document to a specific sheet view on a specific worksheet. I can successfully […]

On an Android 9 tablet: Settings Use Wi-Fi Add network Enter an SSID, and select security None (the Wi-Fi does not require a password). Tap Save The network is not saved and the tablet does not connect to the Wi-Fi network. The Wi-Fi network works perfectly with half a dozen […]