LeetCode: 7. Reverse Integer

Problem: 7. Reverse Integer

Link: https://leetcode.com/problems/reverse-integer/

Difficulty: Easy

Description:

Given a 32-bit signed integer, reverse digits of an integer.

Example 1:

Input: 123
Output: 321

Example 2:

Input: -123
Output: -321

Example 3:

Input: 120
Output: 21

Solution: 

Language: Swift

Runtime: 12ms
Memory: 3.9MB