关于C语言中输入一个三位整数逆序输出一个三位数的方法

最初在LeetCode平台上练习编程时

最初在LeetCode平台上练习编程时

题目：

Given a 32-bit signed integer, reverse digits of an integer.

Example 1:

    Input:Output:

Example 2:

    Input:Output:

Example 3:

    Input:Output:

Note:

We are considering an environment that is capable of storing integers confined within the 32-bit signed integer range, specifically spanning from −2³¹ to 2³¹ − 1. For this problem's context, we will assume that our function returns a value of zero whenever the reversed integer exceeds the permissible range.

_解题思路：那么我认为它是一个负整数的话是否需要考虑它的符号呢？是否需要判断它是不是三位数呢？接