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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.

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