Find Minimum in Rotated Sorted Array

IF
AlgoAxiomStaff Engineers
JSTS
Medium20 mins

Given a sorted rotated array of unique elements, return the minimum element of the array.

You must write an algorithm that runs in O(log n) time.

Examples

Example 1:

Input: nums = [3, 4, 5, 1, 2]

Output: 1

Explanation: The original array was [1, 2, 3, 4, 5] rotated 3 times.

Example 2:

Input: nums = [4, 5, 6, 7, 0, 1, 2]

Output: 0

Example 3:

Input: nums = [11, 13, 15, 17]

Output: 11

Explanation: The array was not rotated.

Constraints

  • 1 <= nums.length <= 5000
  • -5000 <= nums[i] <= 5000
  • All values are unique
  • nums is sorted and rotated between 1 and n times
Source: Modified Binary Search pattern — AlgoAxiom
JavaScript
Test Case 1
root = [1, 2, 3]
Test Case 2
root = [1, 2, 3, 4, 5]
Idle