Dec 20, 2016 For example, if the elements of the array are arranged in ascending order, then binary search should be used, as it is more efficient for sorted lists in terms of complexity. Linear search, also called as sequential search, is a very simple method used for searching an array for a particular value. Implementation of Linear Search in C Initially, we need to mention or accept the element to be searched from the user. Then, we create a for loop and start searching for the element in a sequential fashion. Linear search is a method for searching a value within a array. It sequentially checks one by one of the array for the target element until a match is found or until all the elements have been searched of that array. Simple Linear Search Example Using functions Program (Sequential search). Example to Implement Linear Search. The program code to implement a linear search is as given below. This program has been written in C programming. Let’s go through the following program so as to understand how it helps us find the requisite element in the list using the linear search algorithm. In this topic we are going to discuss best Concept of Searching Algorithms in C: Linear and Binary Search. What is Searching? Searching is the process of finding the occurrence of a particular element in a list.

Searching algorithms are used to find a character or a number in a given array. When comes to searching algorithms, Linear search is the most easiest to implement as the logic behind this is quite simple. In this tutorial we are going to look at the logic behind Linear search, how to implement it in your code and what are its advantages and limitations. Here are some of the algorithms we have covered earlier in our website.

Linear Search Algorithm:

In this Algorithm search for a particular value will be done in a linear fashion. It means the code will search for the element user is looking for by comparing it with every number in the array starting from arr[0], arr[1]….arr[n] until the element is found. If the element is found, algorithm will cease searching, if not search will continue till the last number or character in the sequence.

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Explanation:

Let us consider below array.

Let us consider the number to be searched in this array is “12” and we have to start the search of numbers by comparing with the first element “7”

Since the number “12” is not equal to first element in array, comparison is shifted to the next number in the array.

Now, in the second comparison the number is not a match again. So the comparison is shifted to third number in the array.

Now, the comparison is shifts to the next number in the array. A match occurs when comparing both the values. So the position of this element in the array will be returned and the search will be stopped.

How to implement Insertion Algorithm :

Obtain the numbers or characters in the array
Get the number or character to be searched
Run comparison with each element from the array starting from arr[0] and run the search sequentially.
And if number is found return the position of the element in the array
If not run comparison till last element in the array and print the message “Number not found”.

CODE:

Where to use Linear search Algorithm :

Linear search algorithm is quite useful for small arrays. Since it runs comparison with every element in the array execution time tends to be high. Therefore it will be inefficient to use with arrays with high number of elements. On the bright side Linear search is quite easy to implement in your code, occupies less space and less complex comparing to other search algorithms.

Try out this Activity :

In order to understand this algorithm better, try out the following activity

Write a program that takes 10 number input and store it in an array, it should also ask for user input for the number to search in array. The program should perform linear search using given data and display the output accordingly.

Hope this tutorial was helpful to you. Do try the above activity and post your code below. If you have any questions, feedback post them in the comments section below.

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Linear Search C Example Sentences

Stack & Queue

Searching Techniques

Sorting Techniques

Graph Data Structure

Binary Search C++

Tree Data Structure

Recursion

DSA Useful Resources

Selected Reading

Linear Search C Example Pdf

Linear search is a very simple search algorithm. In this type of search, a sequential search is made over all items one by one. Every item is checked and if a match is found then that particular item is returned, otherwise the search continues till the end of the data collection.

Algorithm

Linear Search C++ Code

Pseudocode

C++ Linear Search Array

To know about linear search implementation in C programming language, please click-here.

Linear Search C++ Example