Leetcode Problem 2098. Subsequence of Size K With the Largest Even Sum

2098. Subsequence of Size K With the Largest Even Sum

Leetcode Solutions

Sorting and Adjusting for Even Sum

  1. Sort the array in descending order.
  2. Calculate the sum of the first k elements.
  3. If the sum is even, return it.
  4. Identify the smallest odd and even numbers within the first k elements.
  5. Identify the largest odd and even numbers outside the first k elements.
  6. Calculate the potential new sums by swapping the identified numbers.
  7. Return the maximum of the new sums if they are even, otherwise return -1.
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Divide and Conquer with Odd and Even Lists

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