Web Reference: Reverse Integer - Given a signed 32-bit integer x, return x with its digits reversed. If reversing x causes the value to go outside the signed 32-bit integer range [-231, 231 - 1], then return 0. Assume the environment does not allow you to store 64-bit integers (signed or unsigned). In-depth solution and explanation for LeetCode 7. Reverse Integer in Python, Java, C++ and more. Intuitions, example walk through, and complexity analysis. Better than official and forum solutions. Jun 14, 2020 · 1) I declare the two variables revNum and lastDigit, which represent the reverse and the last digit of giving integer x, respectively. Then, I loop through x and build up the reverse integer one digit at a time. 2) The remainder of a number divided by 10 will give us the last digit.
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