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Solution: Find Second Maximum Value in an Array

Explore methods to identify the second maximum value in an array of integers. This lesson teaches two approaches, including traversing the array once or twice, and explains their time and space complexities to help you implement efficient solutions in C++.

Statement

Given an array of integers, nums, find the second maximum value from the array.

Constraints:

  • 22 \leq nums.length 103\leq10^3

  • 105-10^5\leq ...