Write code to insert data in an array at a particular position
Data Structure > Array > Array Introduction in Data Structure
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Write an algorithm to multiply two 2-Dimensional array?</h5> </a> </div> <div class="card"> <div class="card-body"> Answer: <p>Multiplication of two matrixes:<br />Rule: Multiplication of two matrixes is only possible if first matrix has size<strong> m X n</strong> and other matrix has size <strong>n x r</strong>. Where m, n and r are any positive integer.</p> <p><span style="color: #3366ff;"><em>Multiplication of two matrixes is defined as:</em></span></p> <p><span style="color: #3366ff;"><em><img class="img-responsive" src="/blog/images/114688820-ds-image-1.png" alt="" width="320" height="69" /></em></span></p> <p><span style="color: #000000;">Where 1 ? i ? m and 1 ? j ? n</span></p> <p><span style="color: #000000;"><br /><strong>For example:</strong><br />Suppose two matrixes A and B of size of 2 x 2 and 2 x 3 respectively:</span></p> <p><span style="color: #000000;"><img class="img-responsive" src="/blog/images/715013965-ds-image-2.png" alt="" width="771" height="596" /></span></p> <p><span style="color: #000000;">Here A is a two </div> </div> <div class="d-flex w-100 justify-content-between"> <a style="color:#9e9d9d;" href="/tutorial/array-introduction-in-data-structure/3/300"> <small># Tutorial: Array Introduction in Data Structure</small> </a> </div> <a style="color:#9e9d9d;" href="/qa/-/3/54"> <small><i class="fa fa-code" aria-hidden="true"></i> Question: Array</small> </a> <span class="float-end" style="color:#9e9d9d"> <small><i class="fa fa-check" aria-hidden="true"></i> Short </small></span> </div> <div class="list-group divStyleQuestion" style="border:1px solid #e0e0e0;padding:8px"> <div class="d-flex w-100 justify-content-between"> <a href="/qanswer/wap-to-sum-of-diagonal-elements-of-a-matrix-in-c-question/54/568"> <h5 class="mb-1" style="color:#194757;">568. 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How to do Linear Search in an Array?</h5> </a> </div> <div class="card"> <div class="card-body"> Answer: <p>Linear search or Sequential is the simplest search algorithm for finding a particular value in an array, that consists of checking every one of its elements, one at a time and in sequence until the desired one is found.</p> <p>Here's an example code for performing a linear search in an array using C language: </p> <pre class = "prettyprint"><xmp> #include <stdio.h> // Function to perform linear search in an array int linearSearch(int arr[], int n, int key) { int i; for (i = 0; i < n; i++) { if (arr[i] == key) return i; } return -1; } int main() { int arr[] = { 2, 5, 7, 12, 16, 20, 23 }; int n = sizeof(arr) / sizeof(arr[0]); int key = 16; int index = linearSearch(arr, n, key); if (index == -1) { printf("Element not found in array"); } else { printf("Element found at index %d", index); } return 0; }
In this code, we have defined a function linearSearch which takes an integer array, its size and the search key as arguments. The function then iterates through the array elements one by one and compares them with the search key. If the key is found, the function returns the index of the key in the array, otherwise it returns -1 indicating that the key was not found.
In the main function, we have declared an integer array, its size and the search key. We then call the linearSearch function passing these arguments, and store the result in the index variable. We then check if the value of index is -1 or not, and print the appropriate message indicating whether the key was found or not.