Given two sorted arrays arr1[] and arr2[] of sizes N and M in non-decreasing order. Merge them in sorted order without using any extra space. Modify arr1 so that it contains the first N elements and modify arr2 so that it contains the last M elements.
Example 1:
Input:
N = 4, arr1[] = [1 3 5 7]
M = 5, arr2[] = [0 2 6 8 9]
Output:
arr1[] = [0 1 2 3]
arr2[] = [5 6 7 8 9]
Explanation:
After merging the two
non-decreasing arrays, we get,
0 1 2 3 5 6 7 8 9.
Example 2:
Input:
N = 2, arr1[] = [10, 12]
M = 3, arr2[] = [5 18 20]
Output:
arr1[] = [5 10]
arr2[] = [12 18 20]
Explanation:
After merging two sorted arrays
we get 5 10 12 18 20.