All O`one Data Structure, is a LeetCode problem. In this post we will see how we can solve this challenge in Swift

Problem Description

You can find the full details of the problem All O`one Data Structure at LeetCode

Solution

a hash table where value is the node containing the key

Time Complexity: O(1), Space Complexity: O(n)

Please check the main.swift snippet for the solution.

This solution originally posted at: Github by @soapyigu