Tag archives for merge-sort

  1. LeetCode in Swift: Sort List

    Problem Statement Sort a linked list in O(n log n) time using constant space complexity. Original LeetCode problem page My Solution in Swift I used a bottom-up iterative merge-sort to solve this problem with O(n log n) time efficiency and O(1) space efficiency. Note that, you cannot use traditional recursive merge-sort to tackle this problem; Continue reading...