Create palindrome_number.py

yingl · web-flow · commit 64ec7d7882f6 · 2019-02-19T21:42:26.000+08:00
diff --git a/palindrome_number.py b/palindrome_number.py
@@ -0,0 +1,18 @@
+class Solution:
+    """
+    @param num: a positive number
+    @return: true if it's a palindrome or false
+    """
+    def isPalindrome(self, num):
+        # write your code here
+        s = str(num) # 转字符串以免溢出
+        i, j = 0, len(s) - 1
+        while i < j:
+            if s[i] == s[j]:
+                i += 1
+                j -= 1
+            else:
+                return False
+        return True
+
+# easy: https://www.lintcode.com/problem/palindrome-number
