class Solution: def simplifyPath(self, path: str) -> str: stack = [] for p in path.split('/'): if p not in ['.', '..', '']: stack.append(p) elif p == '..' and stack: stack.pop() return f"/{'/'.join(stack)}" 因为实
对应的 Java 仓库的地址,传送门:https://github.com/liweiwei1419/LeetCode-Solution-Java 说明:现在刷题,尤其是写题解,绝大多数问题都会写两个语言的代码,Java 是我的母语,Python 是我的新欢。 发布在 LeetCode 中文版上的题解配图使用的 PPT,传送门:https://github.com/liweiwei1419/LeetCode-Solution-PPT...
代码(Python3) # Definition for singly-linked list. # class ListNode: # def __init__(self, val=0, next=None): # self.val = val # self.next = next class Solution: def addTwoNumbers(self, l1: Optional[ListNode], l2: Optional[ListNode]) -> Optional[ListNode]: # 哨兵结点,方便后续处...
1.two sum(easy) Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input would have exactly one solution. Example: Given nums = [2, 7, 11, 15], target = 9, Because nums[0] + nums[1] = 2 + 7 ...
classSolution(object):defcanWinNim(self, n): val= n % 4ifval !=0:returnTrueelse:returnFalse Counting Bits Core: Each time the value is 2^n The different between the the first half and second half is only the first digit Example with 7 ...
solution feat: add solutions to lc problem: No.2434 (#4465) Jun 6, 2025 .clang-format style: update format options Sep 6, 2022 .editorconfig chore: add configuration file .editorconfig (#3336) Jul 31, 2024 .gitignore chore: update .gitignore Apr 26, 2025 ...
return [i,j] 但是报错了(还是本人基本语法掌握不好) 经查阅后 错误消息"TypeError: ‘int’ object is notiterable"通常在Python中出现,当您尝试像遍历(循环)可迭代对象一样遍历整数(int)值时,比如列表、元组或字符串等时会出现此错误。在Python中,您只能遍历支持迭代的对象,如序列和集合。总的来看:列表、字典...
Title: LeetCode Problem 772. Basic Calculator III 简要分析及Python代码 Date: 2018-01-24 Category: Programming Tags: LeetCode, Python, Programming, Solution, Hard, Algorithm Slug: leetcode-765 Author: ouankou LeetCode 第772题 Basic Calculator III 简要分析及Python代码 ...
Given a binary tree, determine if it is height-balanced. For this problem, a height-balanced binary tree is defined as a binary tree in which the depth of the two subtrees of every node never differ by more than 1. 题意分析: 给定一个二叉树,判断其是否是平衡二叉树 ...
218 The Skyline Problem 天际线问题 Description: A city's skyline is the outer contour of the silhouette formed by all the buildings in that city when viewed from a distance. Now suppose you are given the locations and height of all the buildings as shown on a cityscape photo (Figure A)...