Reverse Integer

Reverse Integer

LeetCode Problem

• Problem Number: 7
• Problem Link: https://leetcode.com/problems/reverse-integer/
• Difficulty: Medium
• Topics: Math

Problem Description

Given a signed 32-bit integer x, return x with its digits reversed. If reversing x causes the value to go outside the signed 32-bit integer range [-2³¹, 2³¹ - 1], then return 0.

Assume the environment does not allow you to store 64-bit integers (signed or unsigned).

Examples

Example 1:

Input: x = 123
Output: 321

Example 2:

Input: x = -123
Output: -321

Example 3:

Input: x = 120
Output: 21

Constraints

• -2³¹ <= x <= 2³¹ - 1