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题目描述: 方法一: import collections class Solution: def groupAnagrams(self, strs) : ans = collections.defaultdict(list) for s in strs: ans[tuple(sorted(s))] 阅读全文
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题目描述: 方法一:先转置再反转 class Solution: def rotate(self, matrix: List[List[int]]) -> None: """ Do not return anything, modify matrix in-place instead. """ n 阅读全文
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题目描述: 第一次提交: class Solution: def addStrings(self, num1: str, num2: str) -> str: if len(num1) < len(num2): num1,num2 = num2,num1 num1 = [_ for _ in num 阅读全文
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恢复内容开始 题目描述: 方法一:O(n2) class Solution: def multiply(self, num1: str, num2: str) -> str: def str2int(s): return ord(s) - ord("0") res = 0 num1,num2 = n 阅读全文