How to Cache Google QR Image using PHP?
In this post, we know the easy way to dynamically obtain a QR image for any given text or URL. So in this article, we will explore the method …
Can a Win32 C++ Process Kill Itself?
On Windows, can a process kill itself? Let’s verify this by writing a small piece of C++ code, compiled by GNU C++ compiler 4.6, Windows 32-bit. First, we would …
How to Empty Recycle Bin when it hangs due to lots of files?
Once, the Google Drive moves lots of deleted files into Recycle bin and I was trying to empty the recycle bin using the intuitive way, right click Recycle and …
How to Count Numbers with Unique Digits?
Given a non-negative integer n, please find out the number of integers that have the unique digits between [0, 10^n). For example, if n = 2, there are 91 …
Makefile Tutorial for Beginner – 1
At Linux Shell, a makefile is named Makefile or makefile. A makefile is a text file that defines rules to compile the source code. Without makefiles, you probably need …
C++ Coding Exericse – Tiny TimeIt Utility to Time the Applications
Today, I need to measure two command line utilties so I need a ‘timeit’ utility on Windows. You could record the time before and after the command runs and …