Leet code problem 1800: – Maximum Ascending Subarray Sum

Given an array of positive integers nums, return the maximum possible sum of an ascending subarray in nums. A subarray is defined as a contiguous sequence of numbers in an array.

A subarray [numsl, numsl+1, …, numsr-1, numsr] is ascending if for all i where l <= i < r, numsi < numsi+1. Note that a subarray of size 1 is ascending.

Example 1:

Input: nums = [10,20,30,5,10,50]
Output: 65
Explanation: [5,10,50] is the ascending subarray with the maximum sum of 65.

Example 2:

Input: nums = [10,20,30,40,50]
Output: 150
Explanation: [10,20,30,40,50] is the ascending subarray with the maximum sum of 150.

Example 3:

Input: nums = [12,17,15,13,10,11,12]
Output: 33
Explanation: [10,11,12] is the ascending subarray with the maximum sum of 33.

Example 4:

Input: nums = [100,10,1]
Output: 100

Flow Diagram: –

Solution: –

class Solution {
    public int maxAscendingSum(int[] nums) {
        int res = nums[0],temp = nums[0];
        for(int i = 1;i<nums.length;i++){
            if(nums[i] > nums[i-1])
                temp+=nums[i];
            else
                temp = nums[i];
            res = Math.max(res,temp);
        }
        return res;
    }
}