本文探讨了如何在不使用额外空间的情况下确定一个整数是否为回文数。文章提供了几个提示，包括负数是否可以是回文数、整数转换为字符串的限制以及如何避免反转整数时的溢出问题。
Determine whether an integer is a palindrome. Do this without extra space.
Some hints:
Could negative integers be palindromes? (ie, -1)
If you are thinking of converting the integer to string, note the restriction of using extra space.
You could also try reversing an integer. However, if you have solved the problem "Reverse Integer", you know that the reversed integer might overflow. How would you handle such case?
There is a more generic way of solving this problem.
{优快云:CODE:633814}
扫一扫
被折叠的 条评论
为什么被折叠?
到【灌水乐园】发言
