Kevin Xu ＜（＾－＾）＞ kevin

How to add an image to a gist

Create or find a gist that you own.

Clone your gist (replace <hash> with your gist's hash):

# with ssh
git clone [email protected]:<hash>.git mygist

# with https

git clone https://gist.github.com/.git mygist

Inspired by this article. Neat tricks for speeding up integer computations.

Note: cin.sync_with_stdio(false); disables synchronous IO and gives you a performance boost. If used, you should only use cin for reading input (don't use both cin and scanf when sync is disabled, for example) or you will get unexpected results.

Multiply by a power of 2

x = x << 1; // x = x * 2

	@echo off
	echo ***************************************************************
	echo ***************************************************************
	echo * This Script will stop Windows 10 Spying you...YEYYYY!!! *
	echo ***************************************************************
	echo * We will Disable Data Logging Services *
	echo * We will Configure Windows Explorer *
	echo * We will Uninstall OneDrive *
	echo * We will edit Hosts to stop sending Data to Microsoft *
	echo ***************************************************************

	/**
	* A {@link JTextField} that skips all non-digit keys. The user is only able to enter numbers.
	*
	* @author Michi Gysel <[email protected]>
	*
	*/
	public class JNumberTextField extends JTextField {
	private static final long serialVersionUID = 1L;

	@Override