I need the ans of 4 part other 3 parts ans are posted here i needed ans of part 4 3. Draw the recursion tree when n = 12, where n represents the length of the array, for thefollowing recursive method:int sumSquares (int[] array, int first, int last) {if (first == last)return array [first] array[first];}int mid = (first + last) / 2;return sumSquares (array, first, mid) +sumSquares (array, mid + 1, last);● Determine a formula that counts the numbers of nodes in the recursion tree.•What is the Big-Ⓒ for execution time?•Determine a formula that expresses the height of the tree.What is the Big-Ⓒ for memory?Write an iterative solution for this same problem and compare its efficiency with thisrecursive solution.

The divide-and-conquer technique used by the sumSquares method splits the input array in half with…

Answered: I need the ans of 4 part other 3 parts…

Engineering

Computer Science

I need the ans of 4 part other 3 parts ans are posted here i needed ans of part 4

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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I need the ans of 4 part other 3 parts ans are posted here i needed ans of part 4

3. Draw the recursion tree when n = 12, where n represents the length of the array, for the
following recursive method:
int sumSquares (int[] array, int first, int last) {
if (first == last)
return array [first] array[first];
}
int mid = (first + last) / 2;
return sumSquares (array, first, mid) +
sumSquares (array, mid + 1, last);
● Determine a formula that counts the numbers of nodes in the recursion tree.
•
What is the Big-Ⓒ for execution time?
•
Determine a formula that expresses the height of the tree.
What is the Big-Ⓒ for memory?
Write an iterative solution for this same problem and compare its efficiency with this
recursive solution.

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