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Grokking the Coding Interview Patterns in C++

Reverse Integer

Understand how to reverse a 32-bit signed integer while ensuring the reversed number stays within valid range. Learn to handle overflow cases by returning zero and implement a clear, efficient solution in C++.

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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 [−231,231−1][−2^{31},2^{31}−1] ...