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How to output a multiline string in Bash?
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Not great if you need this in a function because you'll either need to 1) outdent the string all the way to the left of your file or 2) keep it indented to line up with the rest of your code but then it prints with the indents as well
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Big O, how do you calculate/approximate it?
...sertion sort
O(n3) - Multiplying two n×n matrices by simple algorithm
O(cn) - Finding the (exact) solution to the traveling salesman problem using dynamic programming; determining if two logical statements are equivalent using brute force
O(n!) - Solving the traveling salesman problem via brute-...
Site does not exist error for a2ensite
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$ sudo a2ensite mywebsite.conf
5) Check the website on browser and have fun! :)
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MySQL - force not to use cache for testing speed of query
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123
Another alternative that only affects the current connection:
SET SESSION query_cache_type=0;...
How to check if an object is nullable?
...e already boxed the value to an object variable.
Microsoft documentation: https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/nullable-types/how-to-identify-a-nullable-type
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how do I check in bash whether a file was created more than x time ago?
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function file-age { FILE_CREATED_TIME=`date -r "$1" +%s`; TIME_NOW=`date +%s`; echo "$[ ${TIME_NOW} - ${FILE_CREATED_TIME} ]"; }
– turiyag
Apr 28 '18 at 18:50
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How to display count of notifications in app launcher icon [duplicate]
.../developer.android.com/guide/topics/appwidgets/index.html.
Also look here: https://github.com/jgilfelt/android-viewbadger. It can help you.
As for badge numbers. As I said before - there is no standard way for doing this. But we all know that Android is an open operating system and we can do everyth...
When should I create a destructor?
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Awesome article Eric. Props for this --> "Extra bonus fun: the runtime uses less aggressive code generation and less aggressive garbage collection when running the program in the debugger, because it is a bad debugging experience to have objects that you are debugging suddenly d...
What good technology podcasts are out there?
...I. Same guy who does Polymorphic Podcast)
tech5 (Consumer Tech. Mostly a fun waste of 5 minutes because Dvorak is so... Spolsky.)
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edited Sep 14 '09 at 9:16
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How to remove convexity defects in a Sudoku square?
...ove, with some of the missing code added (i.e., labeling of points).
'''
https://stackoverflow.com/questions/10196198/how-to-remove-convexity-defects-in-a-sudoku-square
'''
import cv2
import numpy as np
img = cv2.imread('test.png')
winname="raw image"
cv2.namedWindow(winname)
cv2.imshow(winnam...