How do I merge two arrays without extra space?

Algorithm

1. Create an array vec3[] of size n1 + n2.
2. Simultaneously traverse vec1[] and vec2[].
3. Pick smaller of the current elements in vec1[] and vec2[], copy this smaller element to the next position in vec3[] and move ahead in vec3[] and the array whose element is picked.

Can two unsorted arrays be merged?

Write a SortedMerge() function that takes two lists, each of which is unsorted, and merges the two together into one new list which is in sorted (increasing) order. SortedMerge() should return the new list.

How do I combine two arrays?

Algorithm

1. Start.
2. Declare two arrays.
3. Initialize these two arrays.
4. Declare another array that will store the merged arrays.
5. The size of the merged array should be equal to the sum of the other two arrays.
6. Call a function that will merge these arrays.
7. For loop will help to iterate every element present in the first array.

How do you merge two sorted or unsorted arrays into a single sorted array without duplicates in Java?

How To Merge Two Arrays Into Single Sorted Array Without Duplicates In Java?

1. Step 1 : Merge Two Arrays. Let arrayA and arrayB are two input arrays.
2. Step 2 : Remove Duplicates From Merged Array. In the second step, we remove duplicate elements from mergedArray .
3. Step 3 : Sort The Resultant Array.

How do I merge two arrays in sorted order?

Program 2: Merge Two Sorted Arrays

1. Start.
2. Declare two arrays and initialize them.
3. Declare a sort function that will sort the array elements in ascending order.
4. After initializing the first two arrays, call the sort function.
5. Now, merge the two arrays.
6. Again, call the sort function.
7. Print the resultant sorted array.
8. End.

Can you do merge sort in place?

The standard implementation of merge sort is not in-place; but we can make it in-place by modifying the way we merge the lists. However, this will affect the run-time complexity of the algorithm. So basically, standard merge sort with a modified method to merge the lists in-place is called in-place merge sort.

How do I merge two arrays and sort them?

Traverse arr2[] and one by one insert elements (like insertion sort) of arr3[] to arr1[]….The idea is to use Merge function of Merge sort.

1. Create an array arr3[] of size n1 + n2.
2. Simultaneously traverse arr1[] and arr2[].
3. If there are remaining elements in arr1[] or arr2[], copy them also in arr3[].

Can we add two arrays?

You can only add a numeric array and string array. In the case of a String array, an addition will be concatenation because + operator Concat Strings. It’s better if the arrays you are adding are of the same length, but if they are different then you have a choice of how to program your sum() or add() method.

How do you add two arrays together in C++?

If you’re trying to add the values of two array elements and store them in an array, the syntax is as simple as: arr1[i] = arr2[i] + arr3[i]; But this assumes that the arrays have been declared and arr2 and arr3 have been initialized.

What is the recurrence relation for merge sort?

It is possible to come up with a formula for recurrences of the form T(n) = aT(n/b) + nc (T(1) = 1). This is called the master method. – Merge-sort ⇒ T(n)=2T(n/2) + n (a = 2,b = 2, and c = 1).

Why is merge sort not inplace?

Because it copies more than a constant number of elements at some time, we say that merge sort does not work in place. By contrast, both selection sort and insertion sort do work in place, since they never make a copy of more than a constant number of array elements at any one time.

Why merge sort complexity is Nlogn?

Why is mergesort O(log n)? Mergesort is a divide and conquer algorithm and is O(log n) because the input is repeatedly halved.