Suppose we abstract our file system by a string in the following manner: The string "dir\n\tsubdir1\n\tsubdir2\n\t\tfile.ext" represents: dir subdir1 subdir2 file.ext The directory dir contains an empty sub-directory subdir1 and a sub-directory …

详见:https://leetcode.com/problems/longest-absolute-file-path/description/ C++: class Solution { public: int lengthLongestPath(string input) { int res = 0, n = input.size(), level = 0; unordered_map<int, int> m {{0, 0}}; for (int i = 0; i < n; ++i)…

Suppose we abstract our file system by a string in the following manner: The string "dir\n\tsubdir1\n\tsubdir2\n\t\tfile.ext" represents: dir subdir1 subdir2 file.ext The directory dir contains an empty sub-directory subdir1 and a sub-directory …

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述: 题目大意 解题方法 日期 题目地址:https://leetcode.com/problems/longest-absolute-file-path/description/ 题目描述: Suppose we abstract our file system by a string in the following manner: The string "dir\n\…

题目如下: Suppose we abstract our file system by a string in the following manner: The string "dir\n\tsubdir1\n\tsubdir2\n\t\tfile.ext"represents: dir subdir1 subdir2 file.ext The directory dir contains an empty sub-directory subdir1 and a sub-direc…

就是看哪个文件的绝对路径最长,不是看最深,是看最长,跟文件夹名,文件名都有关. \n表示一波,可能存在一个文件,可能只有文件夹,但是我们需要检测. 之后的\t表示层数. 思路是如果当前层数多余已经有的层数说明是在go deeper,就继续,否则就要回到他属于的父目录,这个性质用STACK来实现再好不过.. 然后一开始没注意求的是最大长度,所以想的是往里PUSH文件夹的名字,其实因为只需要长度,光PUSH文件夹名字的长度就行了.. 用split("\n")来分,注意\t \n是他妈一个字…

要求寻找的是最长的长度的,那么考虑文件夹和文件的存在的不同形式的,利用当前所存在的层数和对应的长度之间做一个映射关系的并且用于计算总的长度关系的. class Solution { public: int lengthLongestPath(string input) { ,level=; map<,}}; int n=input.size(); ;i<n;i++){ int start=i; while(i<n && input[i]!='\n'&&in…

Suppose we abstract our file system by a string in the following manner: The string "dir\n\tsubdir1\n\tsubdir2\n\t\tfile.ext" represents: dir subdir1 subdir2 file.ext The directory dir contains an empty sub-directory subdir1 and a sub-directory …

Suppose we abstract our file system by a string in the following manner: The string "dir\n\tsubdir1\n\tsubdir2\n\t\tfile.ext" represents: dir subdir1 subdir2 file.ext The directory dir contains an empty sub-directory subdir1 and a sub-directory…

问题描述 Suppose we abstract our file system by a string in the following manner: The string "dir\n\tsubdir1\n\tsubdir2\n\t\tfile.ext" represents: dir subdir1 subdir2 file.ext The directory dir contains an empty sub-directory subdir1 and a sub-direc…

Suppose we abstract our file system by a string in the following manner: The string "dir\n\tsubdir1\n\tsubdir2\n\t\tfile.ext" represents: dir subdir1 subdir2 file.ext The directory dir contains an empty sub-directory subdir1 and a sub-directory …

2018-07-30 22:05:52 问题描述: 问题求解: 本题个人感觉还是挺有意思的,题目要求的是最长的文件路径,其实是需要keep tracking路径长度,如果出现文件则需要进行比较,看是否为当前的最大长度. 难点就在于如何keep tracking,不妨将文件的路径旋转90度,那么就可以看到很明显的层次结构,我们可以使用一个栈来维护不同层次的信息,想到这里本题其实基本已经解决了一大半,剩下的就是层次关系的判断,显然和\t有关,那么对这个再进行分析,就很快可以得到解. 这里需要注意的是…

Suppose we abstract our file system by a string in the following manner: The string "dir\n\tsubdir1\n\tsubdir2\n\t\tfile.ext" represents: dir subdir1 subdir2 file.ext The directory dir contains an empty sub-directory subdir1 and a sub-directory …

Given an unsorted array of integers, find the length of the longest consecutive elements sequence. For example,Given [100, 4, 200, 1, 3, 2],The longest consecutive elements sequence is [1, 2, 3, 4]. Return its length: 4. Your algorithm should run in…

题目: Given a non-empty binary tree, find the maximum path sum. For this problem, a path is defined as any sequence of nodes from some starting node to any node in the tree along the parent-child connections. The path must contain at least one node and…

总结一个获取file上传控件文件路径的方法 firefox由于保护机制只有文件名,不能获取完整路径. document.getElementById('file').onchange = function(){ alert(getFullPath(this)) } function getFullPath(obj){ if(!obj){return;} if(!-[1,]){obj.select();return document.selection.createRange().text;} r…

We define a harmonious array is an array where the difference between its maximum value and its minimum value is exactly 1. Now, given an integer array, you need to find the length of its longest harmonious subsequence among all its possible subseque…

Given an unsorted array of integers, find the length of longest continuous increasing subsequence. Example 1: Input: [1,3,5,4,7] Output: 3 Explanation: The longest continuous increasing subsequence is [1,3,5], its length is 3. Even though [1,3,5,7] i…

题目链接: https://leetcode.com/problems/longest-valid-parentheses/?tab=Description   Problem :已知字符串s,求出其中最长的括号合法组合长度   设置两个指针,一个表示左括号open的个数 ,另一个表示右括号close的个数.     方法:两次遍历操作,第一次从前往后遍历,第二次从后向前遍历. 因此时间复杂度为O(n) 1.从左向右扫描,当遇到左括号时,open++,当遇到右括号时,close++       …

题目链接:https://leetcode.com/problems/longest-common-prefix/?tab=Description   Problem: 找出给定的string数组中最长公共前缀   由于是找前缀,因此调用indexOf函数应当返回0(如果该字符子串为字符串的前缀时),如果不是则返回-1 Return: the index of the first occurrence of the specified substring, or -1 if there is n…

题目: Given an unsorted array of integers, find the length of longest continuous increasing subsequence (subarray). Example 1: Input: [1,3,5,4,7] Output: 3 Explanation: The longest continuous increasing subsequence is [1,3,5], its length is 3. Even tho…

Given a non-empty binary tree, find the maximum path sum. For this problem, a path is defined as any sequence of nodes from some starting node to any node in the tree along the parent-child connections. The path must contain at least one node and doe…

https://stackoverflow.com/questions/48568739/unable-to-open-file-for-reading-swift-ioexception-in-laravel-mailable “Unable to open file for reading” (Swift_IoException) in Laravel Mailable I'm trying to use Mailable in Laravel, I have run into an iss…

Given a binary tree, find the length of the longest consecutive sequence path. The path refers to any sequence of nodes from some starting node to any node in the tree along the parent-child connections. The longest consecutive path need to be from p…

Given a binary tree, find the length of the longest path where each node in the path has the same value. This path may or may not pass through the root. Note: The length of path between two nodes is represented by the number of edges between them. Ex…

Given a binary tree, find the length of the longest consecutive sequence path. The path refers to any sequence of nodes from some starting node to any node in the tree along the parent-child connections. The longest consecutive path need to be from p…

Given a string, find the length of the longest substring T that contains at most k distinct characters. For example, Given s = “eceba” and k = 2, T is "ece" which its length is 3. 题意: 给定字符串,求至多包含K种字符的最长子串 思路: 跟[leetcode]159. Longest Substring wi…

Leetcode 5. Longest Palindromic Substring(最长回文子串, Manacher算法) Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000. Example 1: Input: "babad" Output: "bab" Note: "aba&q…

Given a string, find the length of the longest substring without repeating characters. Example 1: Input: "abcabcbb" Output: 3 Explanation: The answer is "abc", with the length of 3. Example 2: Input: "bbbbb" Output: 1 Explana…

Given a string, find the length of the longest substring T that contains at most k distinct characters. For example, Given s = “eceba” and k = 2, T is "ece" which its length is 3. 159. Longest Substring with At Most Two Distinct Characters 的拓展,1…