pass 88 and 125 easy

125-240524-pass/main.py

@@ -0,0 +1,25 @@
+def isPalindrome(s: str) -> bool:
+    tmp = s
+    tmp = tmp.lower()
+    def is_char(ch):
+        if (ch >= 'a' and ch <= 'z') or (ch >= '0' and ch <= '9'):
+            return True
+        return False
+    exp = []
+    for lt in tmp:
+        if is_char(lt):
+            exp.append(lt)
+    length = len(exp)
+    for index, ele in enumerate(exp):
+        if(exp[index] != exp[length - index - 1]):
+            return False
+    return True
+
+s = 'A man, a plan a canal: Panama'
+print(isPalindrome(s))
+s = " "
+print(isPalindrome(s))
+s = "race a car"
+print(isPalindrome(s))
+s = "0P"
+print(isPalindrome(s))