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Challenge: Recursion

Explore recursion through coding exercises that involve finding a pivot in a rotated array and performing binary search on subarrays. Learn to implement these algorithms in Java while understanding their O(log n) time complexity and improving problem-solving skills.

Let's practice what we've learned so far.

Logic building

In order to solve part (a) of the problem, we’ll first begin by analyzing the algorithm below. After that, we’ll move on to coding implementation.

(a) Algorithm to compute kk:

  • Initialize two pointers, left and right, to the beginning and end of the array, respectively (left=0,right=n1left = 0, right = n - 1).
  • While left<rightleft < right:
    • Calculate the middle index: mid=(left+right)//2mid = (left + right) // 2
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