An algorithm is a clear sequence of actions aimed at achieving a goal or solving a problem. The history of the development of algorithms has come a long way from intuitive understanding and spontaneous application to awareness of patterns and practical use in modern computers and computer systems. "Algorithm" is a fundamental concept in computer science. An understanding of it is necessary for the effective use of computer technology to solve practical problems. An algorithm is an instruction to a performer (human or automatic) to perform a precisely defined sequence of actions aimed at achieving a given goal. An algorithm is a rule formulated in a certain language, indicating actions, the sequential execution of which leads from the initial data to the desired result. The meaning of the word algorithm is very similar to the meaning of the words recipe, process, method, method. However, any algorithm, unlike a recipe or method, necessarily has the following properties