Leetcode Problem 2862. Maximum Element-Sum of a Complete Subset of Indices

2862. Maximum Element-Sum of a Complete Subset of Indices

Leetcode Solutions

Square Factorization, O(n)

  1. Initialize a hashmap to store the sum of elements for each unique key.
  2. Initialize a variable to store the maximum element-sum.
  3. Iterate over each index in the input array. a. Calculate the key for the current index by dividing it by all possible square numbers. b. Add the value at the current index to the sum corresponding to its key in the hashmap. c. Update the maximum element-sum with the current sum if it is greater.
  4. Return the maximum element-sum.
UML Thumbnail

Same Parities of Prime Factors of Indices

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