Package g0001_0100.s0007_reverse_integer

Class Solution

java.lang.Object
g0001_0100.s0007_reverse_integer.Solution
public class Solution extends Object
7 - Reverse Integer.

Medium

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).

Example 1:

Input: x = 123

Output: 321

Example 2:

Input: x = -123

Output: -321

Example 3:

Input: x = 120

Output: 21

Example 4:

Input: x = 0

Output: 0

Constraints:

  • -231 <= x <= 231 - 1

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • reverse

      public int reverse(int x)