Largest Sum Contiguous SubArray
Detailed guide and Python implementation for the 'Largest Sum Contiguous SubArray' problem.
Problem Statement
Write a function max_subarray_sum(arr) that finds and returns the maximum sum of a contiguous subarray in an array of integers arr.
- •1 <= len(arr) <= 10^5
- •-10^4 <= arr[i] <= 10^4
Examples
max_subarray_sum([-2, -3, 4, -1, -2, 1, 5, -3])
7
The contiguous subarray with the maximum sum is [4, -1, -2, 1, 5], summing to 7.
max_subarray_sum([-1])
-1
The maximum subarray contains only the element -1.
Need a Hint?
Edge Cases to Watch
- Empty input structures
- Single element inputs
- Large numerical bounds
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