Maximum Subarray Sum Problem Statement

Given an array 'ARR' of integers with length 'N', the task is to determine the sum of the subarray (including an empty subarray) that yields the maximum sum among all possible subarrays.

Explanation:

A subarray is a contiguous segment of an array. In other words, it can be created by removing zero or more elements from the beginning and zero or more elements from the end of the array.

Input:

N ARR[0] ARR[1] ... ARR[N-1]

Output:

Maximum subarray sum

Example:

If given:

N = 5 ARR = [-2, 1, -3, 4, -1]

Output would be:

4

As the subarray [4] produces the maximum sum of 4.

Constraints:

1

Question

Maximum Subarray Sum Problem Statement

Given an array 'ARR' of integers with length 'N', the task is to determine the sum of the subarray (including an empty subarray) that yields the maximum sum among all possible subarrays.

Explanation:

A subarray is a contiguous segment of an array. In other words, it can be created by removing zero or more elements from the beginning and zero or more elements from the end of the array.

Input:

N
ARR[0] ARR[1] ... ARR[N-1]

Output:

Maximum subarray sum

Example:

If given:

N = 5
ARR = [-2, 1, -3, 4, -1]

Output would be:

As the subarray [4] produces the maximum sum of 4.

Constraints:

1 <= N <= 10^6
-10^6 <= A[i] <= 10^6, where A[i] denotes the elements of the array.

Note:

The sum of an empty subarray is considered to be 0.

Accepted Answer

Find the maximum sum of a subarray in an array of integers.

Iterate through the array and keep track of the maximum sum subarray ending at each index.
Use Kadane's algorithm to efficiently find the maximum subarray sum.
Consider the case where all elements are negative to handle edge cases.
Example: For input [1, -2, 3, -1, 2], the maximum subarray sum is 4.