How to Solve Maximum Unique Subarray Sum After Deletion Leetcode Problem - Interview Coder Guide
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How to Solve Maximum Unique Subarray Sum After Deletion Problem

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Easy#3788
LeetCode Problem

Maximum Unique Subarray Sum After Deletion

You are given an integer array nums. You are allowed to delete any number of elements from nums without making it empty. After performing the deletions, select a subarray of nums such that: All elemen...

ArrayHash TableGreedy

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Problem Breakdown

Understanding the Maximum Unique Subarray Sum After Deletion Problem

Let's break down this LeetCode problem and understand what makes it challenging in interview settings.

Problem Statement

You are given an integer array nums. You are allowed to delete any number of elements from nums without making it empty. After performing the deletions, select a subarray of nums such that: All elements in the subarray are unique. The sum of the elements in the subarray is maximized. Return the maximum sum of such a subarray.

EasyProblem #3788
LeetCode

Maximum Unique Subarray Sum After Deletion

Related Topics
ArrayHash TableGreedy
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Examples

Example 1
INPUT
nums = [1,2,3,4,5]
OUTPUT
15
EXPLANATION

Select the entire array without deleting any element to obtain the maximum sum.

Example 2
INPUT
nums = [1,1,0,1,1]
OUTPUT
1
EXPLANATION

Delete the element nums[0] == 1, nums[1] == 1, nums[2] == 0, and nums[3] == 1. Select the entire array [1] to obtain the maximum sum.

Example 3
INPUT
nums = [1,2,-1,-2,1,0,-1]
OUTPUT
3
EXPLANATION

Delete the elements nums[2] == -1 and nums[3] == -2, and select the subarray [2, 1] from [1, 2, 1, 0, -1] to obtain the maximum sum.

Constraints

1 <= nums.length <= 100
100 <= nums[i] <= 100

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