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Problem: Reverse Integer

med
30 min
Explore how to reverse digits of a 32-bit signed integer without exceeding integer limits. Learn to identify edge cases like overflow and apply efficient problem-solving techniques for math-related coding challenges.

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], return 00.

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

Constraints:

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

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Tap here to switch tabs
Problem
Submissions

Problem: Reverse Integer

med
30 min
Explore how to reverse digits of a 32-bit signed integer without exceeding integer limits. Learn to identify edge cases like overflow and apply efficient problem-solving techniques for math-related coding challenges.

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], return 00.

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

Constraints:

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