sinat_40469883的博客

class Solution: def decodeString(self, s: str) -> str: stack, n, res = [], 0, '' for c in s: if c == '[': stack.append((n, res)) n, res = 0, '' elif c == ']': ...

class Solution: def groupAnagrams(self, strs: List[str]) -> List[List[str]]: dic = collections.defaultdict(list) for s in strs: tmp = ''.join(sorted(s)) dic[tmp].append(s) return list(dic.values())...

class Solution: def isFlipedString(self, s1: str, s2: str) -> bool: if not s1 and not s2: return True if len(s1) != len(s2): return False for i in range(len(s1)): if s1 == s2[i:] + s2[:i]: return True r...

class Solution: def oneEditAway(self, first: str, second: str) -> bool: if abs(len(first) - len(second)) > 1: return False if len(first) > len(second): first, second = second, first for i in range(len(f...

class Solution: def reverseWords(self, s: str) -> str: s = s.strip() i, j = len(s)-1, len(s)-1 res = [] while i >= 0: while i >= 0 and s[i] != ' ': i -= 1 res...