Can I merge two arrays without using a third array?

No, in a C program to merge two arrays, a third array is required to store the merged elements. However, you can modify one of the existing arrays if it has enough space.

What is the time complexity of merging two arrays in C?

The basic C program to merge two arrays runs in O(n + m) time complexity, where n and m are the sizes of the two arrays.

How do I merge two sorted arrays in C?

In a C program to merge two sorted arrays, you can use the two-pointer technique, comparing elements and placing them in sorted order in the merged array.

Can I merge two arrays without sorting them?

Yes, you can merge two arrays in C without sorting by simply copying elements from both arrays into a third array without applying any sorting algorithm.

What is the best method to merge two large arrays efficiently?

For large arrays, using memcpy() or dynamic memory allocation (malloc()) is a good approach. A C program to merge two arrays using memcpy is much faster than using loops.

Is it possible to merge two arrays in sorted order without sorting the final array?

Yes, if both input arrays are already sorted, you can write a C program to merge two arrays in sorted order using the merge step of Merge Sort, which merges two sorted arrays efficiently.