The uniqueness of the programming capabilities provided by modern computer systems lies in the simplicity and accessibility of solving a wide range of various problems. The most complex issues are resolved quickly and do not require additional costs of both time and intellectual efforts of the programmer. But even ultramodern helper utilities work with a squeak without the user learning the basics that we have known since the high school computer science course.
Starting to implement any of his ideas in the code, the programmer is simply obliged to carry out a schematic description of the solution. The rules and procedure for compiling algorithms have long been invented. In the special literature, the algorithm is defined as an accurate and understandable instruction to carry out a strictly defined sequence of operations. As a result of their implementation, we obtain the achievement of the goal or we come to the solution of the task.
The term “algorithm” got its name from the name of the Uzbek thinker Al-Khwarizmi. His work "Arithmetic treatise" became the basis of the rules of arithmetic operations on numbers, and the rules themselves began to be called algorithms. With the addition, subtraction, division and multiplication began the world history of programming.
In a diverse list of different ways of solving the same type of problems, a cyclic algorithm is distinguished. It is like walking in a circle to achieve a specific goal. The programming of cyclic algorithms has one complexity; it consists in the fact that if they are incorrectly compiled or misprinted, the computer may “freeze” ie go to performing the same type of operations an infinite number of times.
According to modern interpretation, a cyclic algorithm is an order of certain actions that are repeated over changing initial data. By itself, this order is implemented without any difficulties. A cyclic algorithm is a combination of the capabilities of a linear algorithm and a branching algorithm.
Despite the simplicity of implementation and a certain uniformity of tasks, this type of algorithm is characterized by the presence of several types. The cyclic algorithm is used to put into practice three types of different cycles. By their names, one can judge their characteristic features and the type of tasks to be solved.
A cycle with a precondition involves checking the conditions for executing the algorithm before the list of operations (compiled in the form of a linear algorithm). A cycle with a postcondition differs from the previous one in that the condition is checked after the linear component is executed. A cycle with a parameter is characterized by the presence of a certain indicator, increasing or decreasing with the execution of a list of operations. A cyclic algorithm with a counter, this is sometimes called a type of cycle.
Despite the simplicity of implementing this type of algorithm with two less complex options, each modern programming language has its own specific set of instructions for composing loops. In this case, it is possible to create one to several cycles in the body of one program, depending on the nature of the problem being solved.
The cyclic algorithms themselves are enormous in the programming process. In addition to specific programs that perform certain tasks, there are empty loops. Their task is to create pauses.
The cycle itself can be represented by two generally accepted phrases. For example, the following instruction is already a cyclic algorithm:
- rub the scarf;
- if the scarf is dirty, then go to the beginning of the cycle.
You can come up with a lot of similar examples. Cycles are much more diverse when performing graphic tasks, even creating a raster on the monitor screen is a merit of cyclic programs. Arrays, logic tasks, serious and entertaining programs cannot do without using the advantages of cyclic algorithms.