Given an integer x, return true if x is palindrome integer.
An integer is a palindrome when it reads the same backward as forward. For example, 121 is palindrome while 123 is not.
Example 1:
Input: x = 121
Output: true
Example 2:
Input: x = -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: x = 10
Output: false
Explanation: Reads 01 from right to left. Therefore it is not a palindrome.
Example 4:
Input: x = -101
Output: false
Constraints:
-231 <= x <= 231 - 1
class Solution:
def isPalindrome(self, x: int) -> bool:
num = str(x)
reverse = num[::-1]
if num==reverse:
return True
else:
return False
以下是在討論區看到別人的做法
def isPalindrome(self, x: int) -> bool:
if x<0:
return False
inputNum = x
newNum = 0
while x>0:
newNum = newNum * 10 + x%10
x = x//10
return newNum == inputNum
今天偷懶只寫了一題easy的
而且還使用了小作弊的方法
明天要進去實驗室了
今天在進行收心操的部分
祝我順利
也希望大家連假後的明天都順利!!