How to Solve Maximum Subarray Sum with One Deletion Problem
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Maximum Subarray Sum with One Deletion
Given an array of integers, return the maximum sum for a non-empty subarray (contiguous elements) with at most one element deletion. In other words, you want to choose a subarray and optionally delete...
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Understanding the Maximum Subarray Sum with One Deletion Problem
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Problem Statement
Given an array of integers, return the maximum sum for a non-empty subarray (contiguous elements) with at most one element deletion. In other words, you want to choose a subarray and optionally delete one element from it so that there is still at least one element left and the sum of the remaining elements is maximum possible. Note that the subarray needs to be non-empty after deleting one element.
Maximum Subarray Sum with One Deletion
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Examples
arr = [1,-2,0,3]4Because we can choose [1, -2, 0, 3] and drop -2, thus the subarray [1, 0, 3] becomes the maximum value.
arr = [1,-2,-2,3]3We just choose [3] and it's the maximum sum.
arr = [-1,-1,-1,-1]-1The final subarray needs to be non-empty. You can't choose [-1] and delete -1 from it, then get an empty subarray to make the sum equals to 0.
Constraints
1 <= arr.length <= 105104 <= arr[i] <= 104How Interview Coder Helps with Leetcode Problems
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