python leetcode 387. First Unique Character in a String
利用find函式能極大地減少執行時間
class Solution: def firstUniqChar(self, s): """ :type s: str :rtype: int """ c='qwertyuiopasdfghjklzxcvbnm' res=2**31-1 for n in c: index = s.find(n) if index ==-1: continue if s[index+1:].find(n)==-1: res=min(res,index) return res if res!=2**31-1 else -1
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python leetcode 387. First Unique Character in a String
利用find函式能極大地減少執行時間 class Solution: def firstUniqChar(self, s): """ :type s: str :rtype: int """ c='q
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