1487. 保证文件名唯一

class FindElements(object):
    def getFolderNames(self, names):
        """
        :type names: List[str]
        :rtype: List[str]
        """
        mydict = {}
        res = []
        for item in names:
            if item in mydict.keys():
                mydict[item] += 1
                newName = item + "(" + str(mydict[item]) + ")"
                while newName in mydict.keys():
                    mydict[item] += 1
                    newName = item + "(" + str(mydict[item]) + ")"
                res.append(newName)
                mydict[newName] = 0
            else:
                mydict[item] = 0
                res.append(item)
        return res

代码二：python3

class Solution(object):
    def getFolderNames(self, names):
        mydict, res = {}, []
        for name in names:
            temp = name
            while temp in mydict:
                temp = f'{name}({mydict[name]})'
                mydict[name] += 1
            mydict[temp] = 1
            res.append(temp)
        return res