7. Reverse Integer | Leetcode Unlocked - Python
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Dive deep into LeetCode 7: Reverse Integer, a classic coding interview problem that seems simple but has a critical catch. This detailed tutorial breaks down the core logic, showing you how to reverse a number's digits mathematically using the "pop and push" method with modulo and integer division. The real challenge is handling the 32-bit signed integer overflow constraint without using larger data types. We explain a robust strategy to check for overflow before it occurs. This video provides a full step-by-step walkthrough of the solution in Python, followed by complete, working code in C++, Java, and JavaScript, highlighting the differences in each language's approach to the overflow check. We also cover the time O(log(x)) and space O(1) complexity.
Perfect for coding interview preparation and improving problem-solving skills.
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Solution Link:
https://leetcode.com/problems/reverse...
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