#approach 1 class Solution: def toLowerCase(self, str): return "".join(chr(ord(c) + 32) if "A" <= c <= "Z" else c for c in str) #approach 2 class Solution: def toLowerCase(self, str): return str.lower()
#approach 1 class Solution: def toLowerCase(self, str): return "".join(chr(ord(c) + 32) if "A" <= c <= "Z" else c for c in str) #approach 2 class Solution: def toLowerCase(self, str): return str.lower()