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static boolean isValid(String value) {
	try { new java.math.BigInteger(value); }
	catch (Exception e) { return false; }
	return true;
}

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/*
 * Solution of Joshphus Problem using Bitwise Operation
 * Wikipedia: https://en.wikipedia.org/wiki/Josephus_problem
 * YouTube: https://www.youtube.com/watch?v=uCsD3ZGzMgE
 * 
 * ====================== EXPLANATION ======================
 *
 * n (41) the number of people standing in the circle
 * n = 101001
 *

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/*
 * Solution of Josephus Problem using Bitwise Operation
 * Shifting the most-significant set bit of n to the 
 * least significant bit will return the safe position.
 * 
 * ====================== EXPLANATION ======================
 *
 * n (41) the number of people standing in the circle
 * n = 101001
 *

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How to download a Google Drive URL via WGET

For small file

Run following command on your terminal:

wget --no-check-certificate 'https://docs.google.com/uc?export=download&id=FILEID' -O FILENAME

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How to use MySQL command line with special characters password

You must do this if the password has any of the following characters:

* ? [ < > & ; ! | $ ( )

🟥 Important Note: Make sure there is no space after -p and MySQL password.

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Python SerialException: Device reports readiness to read but returned no data (device disconnected?)

Fix:

Use this command:

sudo systemctl stop [email protected]