An avid programmer, very well knows that algorithms play an important role in solving technical problems and processing data. The important thing to note about algorithms is that you will have to learn about its characteristics and types before you can start the procedure for writing the algorithm.
In this blog, we have brought to you all the information you need to know as a beginner programmer to learn the concept of algorithms.
From the types of algorithms to the time complexity of sorting algorithms, we have incorporated all the details. Henceforth, you are urged to read till the end of the blog.
What is an algorithm?
Before learning the book definition of algorithm let us clarify an important fact about the subject. Algorithms are basically used in all the different fields and are in no way restricted to the field of computer science.
Algorithms can be defined as finite sets of instructions that are used to solve a given problem.
An algorithm is a sequence of instructions that are used to find the end result for a problem.
Algorithms should not be confused with the concept of programming. In order to design software or a program, the algorithm is mentioned prior to programming.
After knowing the basics of the algorithm, it is essential to know about its characteristics for a better understanding on the topic.
Characteristics of Algorithms
In the context of algorithms, the steps followed for completing the algorithm are referred to as sequences.
But, keep in mind that not all procedures can be considered algorithms.
The sequences must depict the following characteristics in order to qualify as algorithms:
Unambiguous
The book definition for the word is something that leads in a single direction or something that has a single meaning.
In the context of algorithms, the sequences of steps followed to complete the problem must lead to a definite output. The end result for the problem should point in a single direction.
Input
Algorithms are characterized by having 0 or similar inputs which should be definitive in order to form a proper output for the problem.
Output
The output for any algorithm should have 1 or more definitive output. It should always match the desired level of output that the programmer has been looking to attain.
Finiteness
This characteristic shares similarity with the characteristic of unambiguity. As we have discussed earlier with an example, the sequences for an algorithm must have a finite number of steps after which the algorithm will terminate.
Feasibility
The procedure of the algorithm should be attainable or feasible. This simply means that neither the input statements nor the output of the algorithm should be outside of our reach.
Independent
The sequences for an algorithm or the step by step procedure must be predefined before the programmers proceed with the process of defining the programming code.
Those were the major criterias that the sequences for an algorithm must follow in order to be eligible for forming an algorithm.
Now before learning how you can compute an algorithm let us take a look at the types of algorithms to get a general idea.
What are the types of algorithms?
From brute force algorithm to recursive algorithm, there are various type of algorithms which are discussed as follows:
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