Maximum Subarray Sum Task

Given an array or list ARR consisting of N integers, your objective is to compute the maximum possible sum obtainable from a non-empty subarray (a contiguous sequence) within this array.

Example:

Input:

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

Output:

4

Explanation:

For the array [-2, 1, -3, 4, -1], the subarray [4] gives the maximum sum of 4.

Constraints:

1 ≤ N ≤ 5 * 10⁵

-10⁹ ≤ ARR[i] ≤ 10⁹

Time Limit: 1 second

Question

Maximum Subarray Sum Task

Given an array or list ARR consisting of N integers, your objective is to compute the maximum possible sum obtainable from a non-empty subarray (a contiguous sequence) within this array.

Example:

Input:

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

Output:

Explanation:

For the array [-2, 1, -3, 4, -1], the subarray [4] gives the maximum sum of 4.

Constraints:

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

Accepted Answer

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

Iterate through the array and keep track of the maximum sum of subarrays encountered so far.
At each index, decide whether to include the current element in the subarray or start a new subarray.
Update the maximum sum if a new maximum is found.
Example: For input [-2, 1, -3, 4, -1], the maximum subarray sum is 4.