The Merge function takes four arguments: A, ℓ, m, and r. A represents the array to be merged, ℓ represents the ____ index of the sub-array to be merged, m represents the ____ index... The Merge function takes four arguments: A, ℓ, m, and r. A represents the array to be merged, ℓ represents the ____ index of the sub-array to be merged, m represents the ____ index, and r represents the ____ index.
Understand the Problem
The question is asking about the Merge function, specifically what the parameters represent regarding the indices of the sub-arrays. It seeks to clarify the definitions of the start, mid, and end indices for merging sub-arrays in an array.
Answer
ℓ: starting index of left sub-array, m: ending index of left sub-array, r: ending index of right sub-array.
The merge function takes four arguments: A, ℓ, m, and r. A represents the array to be merged, ℓ represents the starting index of the left sub-array, m represents the ending index of the left sub-array, and r represents the ending index of the right sub-array.
Answer for screen readers
The merge function takes four arguments: A, ℓ, m, and r. A represents the array to be merged, ℓ represents the starting index of the left sub-array, m represents the ending index of the left sub-array, and r represents the ending index of the right sub-array.
More Information
In merge sort, the merge function combines two sorted sub-arrays into a single sorted array. ℓ, m, and r are crucial indices for defining the boundaries of these sub-arrays within the larger array A.
Tips
A common mistake is to misunderstand which indices are included in each sub-array. Make sure to correctly define the sub-array ranges.
Sources
- Merge Sort - OLabs - olabs.edu.in
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