The PHP Bing Wallpaper Bot Crawler
The Bing has updated a wall paper everyday and we can create a PHP script to crawl it automatically everyday, which can be set to crontab job daily. // …
Category: programming languages
How to Compute Sum of Two Integers without Plus+ and Minus- Operators?
Your task is to Calculate the sum of two integers a and b without using the operator + and -. Bit Manipulation Integers represent in binary consists of bits …
C++ Coding Exercise: How to Check if a Large Integer is divisible by 11?
We all know that the 32-bit signed/unsigned integer takes 4 byte while 64-bit signed/unsigned integer takes 8 bytes to store. If there is a very big integer which is …
Do Thread A and B Require Mutex to Operate on High/Low of a DWORD?
Given a 32-bit DWORD, and two threads A and B, do they require Mutex (exclusive resources) to read/write the High/Low DWORD respectively? e.g. Thread A reads two low bytes …
Google Interview Question – Print Message
This is the technical phone interview question from Google. Google has offices in London but the call was from Google Switzerland (+41). The interview lasts for 45 minutes. Given …