How to Solve Maximize Subarray Sum After Removing All Occurrences of One Element Problem
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Maximize Subarray Sum After Removing All Occurrences of One Element
You are given an integer array nums. You can do the following operation on the array at most once: Choose any integer x such that nums remains non-empty on removing all occurrences of x. Remove all oc...
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Understanding the Maximize Subarray Sum After Removing All Occurrences of One Element Problem
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Problem Statement
You are given an integer array nums. You can do the following operation on the array at most once: Choose any integer x such that nums remains non-empty on removing all occurrences of x. Remove all occurrences of x from the array. Return the maximum subarray sum across all possible resulting arrays.
Maximize Subarray Sum After Removing All Occurrences of One Element
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Examples
nums = [-3,2,-2,-1,3,-2,3]7We can have the following arrays after at most one operation: The original array is nums = [-3, 2, -2, -1, 3, -2, 3]. The maximum subarray sum is 3 + (-2) + 3 = 4. Deleting all occurences of x = -3 results in nums = [2, -2, -1, 3, -2, 3]. The maximum subarray sum is 3 + (-2) + 3 = 4. Deleting all occurences of x = -2 results in nums = [-3, 2, -1, 3, 3]. The maximum subarray sum is 2 + (-1) + 3 + 3 = 7. Deleting all occurences of x = -1 results in nums = [-3, 2, -2, 3, -2, 3]. The maximum subarray sum is 3 + (-2) + 3 = 4. Deleting all occurences of x = 3 results in nums = [-3, 2, -2, -1, -2]. The maximum subarray sum is 2. The output is max(4, 4, 7, 4, 2) = 7.
nums = [1,2,3,4]10It is optimal to not perform any operations.
Constraints
1 <= nums.length <= 105106 <= nums[i] <= 106How Interview Coder Helps with Leetcode Problems
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