Last updated: Aug 25, 2023
An algorithm is a series of steps that must be taken to solve a problem in an application or system. In other words, this is a collection of logical steps that are ordered based on a certain system in problem-solving.
Each problem-solving method certainly has characteristics, as well as algorithms. According to Donald E. Knuth, some of the algorithm characteristics are as follows:
In providing the expected results or output, the algorithm requires input from the user. Input is the amount of value or command given to the algorithm before it processes it into an output. For example, the input is text or numbers. An algorithm can have no input or have several inputs at once.
Besides having input, the algorithm also has an output which is the solution or result of solving the problem at hand. An algorithm can have one or more outputs. If the algorithm does not return the expected output, there could be an error in your algorithm.
One of the algorithm characteristics is that it has a process consisting of steps to solve a problem. A process is an action taken to convert user input into the expected output.
Algorithms must be made effectively and efficiently. Each step that is carried out must be made as simple as possible so that the time required to display the output is not too long.
Another algorithm characteristic is that it is clear and unambiguous. That is, each step or step was taken in an algorithm has only one meaning. That way, the resulting program can display the expected output.
The algorithm will stop after doing certain steps or after finding a solution to the problem. If the algorithm of a program cannot stop, then there is an indication of an error in the algorithm.
In general, the function of an algorithm is to help you find a way to solve a problem. In addition, some algorithm functions are as follows:
Algorithms are divided into several types according to the input processing stages to produce a certain output. The types of algorithms are as follows:
This is the algorithm that has sequential steps from beginning to end. Each step must be executed sequentially from the very top to the bottom line of the code so that the resulting output is as expected.
Loop algorithm is an algorithm that has certain steps and is executed repeatedly. The loop will only stop when certain conditions or loop constraints are met.
A branching or conditional algorithm is an algorithm that has a number of steps with certain conditions. In this algorithm, to perform the next step usually must meet certain conditions first.
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