Write a c program to find common elements in two arrays.
Given two positive integer arrays arr1 and arr2 of lengths len1 and len2. We have to write a c code to find intersection of these two arrays. Both the arrays are sorted.
Let’s assume we have following two sorted arrays arr1 and arr2.
int arr1[] = {2, 3, 4, 5, 6};
int arr2[] = {4, 6, 7, 8, 9};
So the common elements in these two arrays is 4 and 6.
Let’s discuss a problem to find the second largest number in an array.
Given an unsorted array of integers, write a code to find the second largest number in an array.
For example –
Input – arr[] = { 4, 1, 5, 2, 8, 0, 3, 55}
Output – 8
The second max element in this array is 8.
Before checking the solution, let’s think for a moment, how do you approach this problem? There are multiple ways to solve this problem. Which approach you prefer and why? At the end of this tutorial, I have shared the link to the video tutorial.
In this tutorial, I am going to cover following topics –
