Determine whether an integer is a palindrome. An integer is a palindrome when it reads the same backward as forward.
Example 1:
Input: 121
Output: true
Example 2:
Input: -121
Output: false
Explanation: From left to right, it reads -121. From right to left, it becomes 121-. Therefore it is not a palindrome.
Example 3:
Input: 10
Output: false
Explanation: Reads 01 from right to left. Therefore it is not a palindrome.
impl Solution {
pub fn is_palindrome(x: i32) -> bool {
if x < 0 {
return false;
}
if x < 10 {
return true;
}
let mut temp = x;
let mut reverse = 0;
while temp > 0 {
reverse = reverse*10 + temp%10;
temp = temp/10;
}
if x == (reverse&x) {
return true;
} else {
return false;
}
}
}本作品採用《CC 協議》，轉載必須註明作者和本文連結