189. Reverse Integer

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Example 1:

Input: x = 123

Output: 321

Explanation: The digits are reversed from 123 to 321. 321 is within the 32-bit signed integer range.

Example 2:

Input: x = -123

Output: -321

Explanation: The digits are reversed, and the negative sign is preserved. -321 is within the 32-bit signed integer range.

Example 3:

Input: x = 120

Output: 21

Explanation: The digits are reversed from 120 to 021, which simplifies to 21. 21 is within the 32-bit signed integer range.

Constraints:

•

Time Complexity

O(log10|x|)

Space Complexity

O(1)

189. Reverse Integer

Understand Before Coding

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Draw Your Approach

Example 1:

Example 2:

Example 3:

Constraints:

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189. Reverse Integer

Understand Before Coding

Visualize This Problem

Draw Your Approach

Example 1:

Example 2:

Example 3:

Constraints:

Learn

Topics

Companies

Hint

Use Cases