leetcode 9 Palindrome Number

9. Palindrome Number
Determine whether an integer is a palindrome. Do this without extra space.
- 用一个变量reverse来保存翻转的x部分
- reverse只保存了一般
- 终止条件为x的大小小于reverse
- 例如:
1234
终止条件:x =12
y =32
3223
终止条件:x =32
y =32
√123
终止条件: x =1
y =32
121
终止条件: x =1
y =12
√
1 | class Solution { |