1732. Find the Highest Altitude

https://leetcode.com/problems/find-the-highest-altitude

Description

There is a biker going on a road trip. The road trip consists of n + 1 points at different altitudes. The biker starts his trip on point 0 with altitude equal 0.

You are given an integer array gain of length n where gain[i] is the net gain in altitude between points i​​​​​​ and i + 1 for all (0 <= i < n). Return the highest altitude of a point.

Example 1:

**Input:** gain = [-5,1,5,0,-7]
**Output:** 1
**Explanation:** The altitudes are [0,-5,-4,1,1,-6]. The highest is 1.

Example 2:

**Input:** gain = [-4,-3,-2,-1,4,3,2]
**Output:** 0
**Explanation:** The altitudes are [0,-4,-7,-9,-10,-6,-3,-1]. The highest is 0.

Constraints:

• n == gain.length

• 1 <= n <= 100

• -100 <= gain[i] <= 100

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