Array Amplitude
Problem Description
Given an integer array nums, calculate its amplitude. The amplitude of an array is defined as the mathematical difference between its maximum element and its minimum element. If the array contains only one element, its amplitude is 0.
Write an efficient algorithm to find this value in a single pass.
Example 1
Input
nums = [3, 8, 2, 5, 12]
Output
10
Explanation: The maximum element in the array is 12 and the minimum element is 2. The amplitude is 12 - 2 = 10.
Example 2
Input
nums = [7, 7, 7, 7]
Output
0
Explanation: The maximum element is 7 and the minimum element is 7. The amplitude is 7 - 7 = 0.
Example 3
Input
nums = [-5, 10, -3, 0, 15, -12]
Output
27
Explanation: The maximum element is 15 and the minimum element is -12. The amplitude is 15 - (-12) = 27.
Constraints
- 1 <= nums.length <= 10^5
- -10^9 <= nums[i] <= 10^9
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