Leetcode Problem 2164. Sort Even and Odd Indices Independently

2164. Sort Even and Odd Indices Independently

Leetcode Solutions

Separate, Sort, and Merge Approach

  1. Initialize two empty lists: even and odd.
  2. Iterate through the input array nums.
    • If the index is even, append the element to the even list.
    • If the index is odd, append the element to the odd list.
  3. Sort the even list in non-decreasing order.
  4. Sort the odd list in non-increasing order.
  5. Initialize an empty list result to store the final sorted array.
  6. Use two pointers, one for each of the even and odd lists.
  7. Iterate through the range of the length of nums.
    • If the index is even, append the next element from the even list to result.
    • If the index is odd, append the next element from the odd list to result.
  8. Return the result list.
UML Thumbnail

In-Place Sorting with Custom Comparator

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