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Problem: Reverse Integer

Medium
30 min
Understand how to reverse digits of a 32-bit signed integer while handling overflow constraints. Learn effective strategies for math-based coding interview problems and apply them in a coding playground.

Statement

Given a 32-bit signed integer num, reverse its digits and return the result. If the reversed number exceeds the 32-bit signed integer range [231,2311][−2^{31},2^{31}−1], return 00.

Assume the environment does not support storing 64-bit integers (signed or unsigned).

Constraints:

  • 231-2^{31} \leq num 2311\leq2^{31}-1

Problem
Ask
Submissions

Problem: Reverse Integer

Medium
30 min
Understand how to reverse digits of a 32-bit signed integer while handling overflow constraints. Learn effective strategies for math-based coding interview problems and apply them in a coding playground.

Statement

Given a 32-bit signed integer num, reverse its digits and return the result. If the reversed number exceeds the 32-bit signed integer range [231,2311][−2^{31},2^{31}−1], return 00.

Assume the environment does not support storing 64-bit integers (signed or unsigned).

Constraints:

  • 231-2^{31} \leq num 2311\leq2^{31}-1