Maximum Subarray Sum Problem Statement

Given an array ARR consisting of N integers, your goal is to determine the maximum possible sum of a non-empty contiguous subarray within this array.

Example of Subarrays:

An array C is considered a subarray of array D if it can be obtained by deleting zero or more elements from the beginning and end of the array D. For instance, for the array [1, 2, 3], all non-empty subarrays are [1], [2], [3], [1, 2], [2, 3], and [1, 2, 3].

Input:

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

Output:

Print the maximum possible sum of any subarray of the array/list.

Example:

Input:

5 -2 1 -3 4 -1

Output:

4

Explanation:

The subarray [4] has the maximum sum of any contiguous subarray.

Constraints:

1

Question

Maximum Subarray Sum Problem Statement

Given an array ARR consisting of N integers, your goal is to determine the maximum possible sum of a non-empty contiguous subarray within this array.

Example of Subarrays:

An array C is considered a subarray of array D if it can be obtained by deleting zero or more elements from the beginning and end of the array D. For instance, for the array [1, 2, 3], all non-empty subarrays are [1], [2], [3], [1, 2], [2, 3], and [1, 2, 3].

Input:

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

Output:

Print the maximum possible sum of any subarray of the array/list.

Example:

Input:

5
-2 1 -3 4 -1

Output:

Explanation:

The subarray [4] has the maximum sum of any contiguous subarray.

Constraints:

1 <= N <= 5*10⁵
-10⁹ <= ARR[i] <= 10⁹
Time Limit: 1 second

Note:

You do not need to print anything; it has already been taken care of. Implement the required function to find the solution.

Accepted Answer

Find the maximum sum of a contiguous subarray within an array of integers.

Iterate through the array and keep track of the maximum sum of subarrays seen so far.
Use Kadane's algorithm to efficiently find the maximum subarray sum.
Consider edge cases like all negative numbers in the array.
Example: For input [-2, 1, -3, 4, -1], the maximum subarray sum is 4.