The book is dedicated to the use of the C++ language to solve interesting, useful and complex programming problems. The development of a garbage collector, a custom STL container and a flow control panel is considered. It shows how to create a file loader from the Internet, as well as write applications for financial settlements (calculating loan payments, calculating the amount of investments, etc.) - Attention is paid to the use of the C++ language to solve artificial intelligence problems. The unique code of the Mini C++ interpreter is given. Each chapter of the book is accompanied by tasks for independent work For programmers.