#1652Medium· asked at 15 companies
Reverse Integer
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What we know
Example 1
Input: x = 123 Output: 321
Example 2
Input: x = -123 Output: -321
Example 3
Input: x = 120 Output: 21
Constraints
- •
-2^31 <= x <= 2^31 - 1 - •
Assume the environment cannot store 64-bit integers.