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1732. Find the Highest Altitude

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Problem Statement

1732. Find the Highest Altitude

Easy


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:

Java

Source file
class Solution {
    public int largestAltitude(int[] gain) {
        int maxm = 0, altitude = 0;
        for (int i : gain)
            maxm = Math.max(maxm, altitude += i);
        return maxm;
    }
}