There are many useful tools in Linux to help us to explore the world. However, different from graphic tools, they are in fact some instructions in Linux, which motivates me to record some of them here, for sharing and my poor memory. strace Strace is...
Introduction In C#, there is a type named ValueType. Numeric types such as int, double are all derived from it. Sometimes we may want to compare two ValueType object (the two object are actually the same numeric type). In some conditions, though we c...
This is a blog recording little tricks I meet or use in C/C++. I will update this blog every time I meet a new trick. (If my memory is good enough to remember this blog馃槀) Use "R" to cancel escape of string. Use gsl::narrow to cast from one type to ...
Recently, in my open-source project Num.NET, a problem puzzled me. The problem I abstract my code as below: define.h template<typename T> class Methods{ public: T methodA(T inp); void methodB(vector<T> &inp, int c); } impl.cpp template<type...
Since 4th, January, I have worked in Microsoft as an intern for nearly two months. During the period, I really learned a lot from my colleague so that I want to record them here. Do exactly what the project supposes you to do The first lesson from Mi...
I practice on Acwing and a problem stucked me. In fact, the problem is not so difficult as I imagined. Instead, it is an application of stack. The Logest Valid Parentheses Problem A valid parentheses sequence satisfies the following conditions. The ...
Problem: Line Covers There are n line segments on a coordinate axis. The coordinates of each endpoint of each line segment are integers. There may be line segments that degenerate into points. Line segments can cross, nest or even overlap each other....
Sometimes we want to wrap some methods in C++ because of its high performace at computation. However, it's more convenient for us to develop our program using a managed language, such as CSharp. So what we need to do is to wrap some methods in C++ an...
I'm a developer for C++, C#, and python. Recently I rent a Cloud Server with Ubuntu OS for development. Here are the steps of configuration. Basic Configurations Users It's imporant to add a user account before you configure your server because it's ...
