C++ Data Structures and Algorithms

Creating your first code in C++

In C++, the code is executed from the main() function first. The function itself is a collection of statements to perform a specific task. As a result of this, a program in C++ has to contain at least one function named main(). The following code is the simplest program in C++ that will be successfully compiled and run:

    int main()    {      return 0;    }

Suppose the preceding code is saved as a simple.cpp file. We can compile the code using the g++ compiler by running the following compiling command on the console from the active directory where the simple.cpp file is placed:

g++ simple.cpp

If no error message appears, the output file will be generated automatically. If we run the preceding compiling command on a Windows ...