是念的博客_C++

[leetcode] 722. Remove Comments

DescriptionGiven a C++ program, remove comments from it. The program source is an array where s

i++

c++

sed

原创 2022-08-15 06:00:32 110 阅读

[leetcode] 125. Valid Palindrome

DescriptionGiven a string, determine if it is a palindrome, considering only alphanumeric charr...

回文子串

i++

字符串

原创 2022-08-12 08:41:17 54 阅读

[leetcode] 80. Remove Duplicates from Sorted Array II

DescriptionGiven a sorted array nums, remove the duplicates in-place such that duplicat, you must do ...

sed

数组

参考文献

原创 2022-08-12 08:41:05 68 阅读

[leetcode] 383. Ransom Note

Description Given an arbitrary ransom note string and another string containing letters from all the magaz

字符串

参考文献

sed

原创 2022-08-12 08:40:11 66 阅读

c++遍历某个路径下的所有文件

正确的代码如下，注意，路径需要用char*格式，否则会出现读不出来的错误。int main(){

xml

结构体指针

文件句柄

原创 2022-08-12 08:35:41 243 阅读

[leetcode] 36. Valid Sudoku

DescriptionDetermine if a 9x9 Sudoku board is valid. Only the filled cells need to be validated acco

git

i++

参考文献

原创 2022-08-12 08:27:16 73 阅读

[leetcode] 593. Valid Square

DescriptionGiven the coordinates of four points in 2D space, return whether the four points

ide

参考文献

2d

原创 2022-08-12 08:27:07 64 阅读

[leetcode] 468. Validate IP Address

DescriptionWrite a function to check whether an input string is a valid IPv4 address or IPv6 addr

字符串

ide

git

原创 2022-08-12 08:26:50 45 阅读

[leetcode] 98. Validate Binary Search Tree

DescriptionGiven a binary tree, determine if it is a valid binary search tree (BST).Assume a BST i

二叉搜索树

子树

参考文献

原创 2022-08-12 08:26:43 38 阅读

[leetcode] 331. Verify Preorder Serialization of a Binary Tree

DescriptionOne way to serialize a binary tree is to use pre-order traversal. When we encoun

序列化

先序

二叉树

原创 2022-08-12 08:26:37 47 阅读

[leetcode] 365. Water and Jug Problem

DescriptionYou are given two jugs with capacities x and y litres. There is an infinite amount of water

最大公约数

参考文献

原创 2022-08-12 08:26:31 45 阅读

[leetcode] 44. Wildcard Matching

DescriptionGiven an input string (s) and a pattern §, implement wildcard pattern matching wi

i++

初始状态

参考文献

原创 2022-08-12 08:26:25 63 阅读

[leetcode] 376. Wiggle Subsequence

DescriptionA sequence of numbers is called a wiggle sequence if the differences between succe

子序列

数组

参考文献

原创 2022-08-12 08:26:19 63 阅读

[leetcode] 324. Wiggle Sort II

DescriptionGiven an unsorted array nums, reorder it such that nums[0] < nums[1] > nums[2] < nu

数组

数组排序

参考文献

原创 2022-08-12 08:26:14 29 阅读

[leetcode] 212. Word Search II

DescriptionGiven a 2D board and a list of words from the dictionary, find all words in the board.Ea

i++

二维

参考文献

原创 2022-08-12 08:26:03 45 阅读

[leetcode] 140. Word Break II

DescriptionGiven a non-empty string s and a dictionary wordDict containing a list of non-empty

字符串

参考文献

动态规划

原创 2022-08-12 08:25:58 65 阅读

[leetcode] 139. Word Break

DescriptionGiven a non-empty string s and a dictionary wordDict containing a list of non-emp

sed

参考文献

i++

原创 2022-08-12 08:25:46 43 阅读

[leetcode] 126. Word Ladder II

DescriptionGiven two words (beginWord and endWord), and a dictionary’s word list, find all shortean be changed at...

最短路径

当前路径

参考文献

原创 2022-08-12 08:25:40 41 阅读

[leetcode] 42. Trapping Rain Water

DescriptionGiven n non-negative integers representing an elevation map where the width of ea

参考文献

i++

原创 2022-08-12 07:33:08 35 阅读

[leetcode] 867. Transpose Matrix

DescriptionGiven a matrix A, return the transpose of A.The transpose of a matrix is the matrix flippe

参考文献

i++

数组

原创 2022-08-12 07:33:02 48 阅读

[leetcode] 1. Two Sum

DescriptionGiven an array of integers, return indices of the two numbers such that they add up to a specif

数组

参考文献

i++

原创 2022-08-12 07:32:36 65 阅读

[leetcode] 95. Unique Binary Search Trees II

DescriptionGiven an integer n, generate all structurally unique BST’s (binary search trees) that store

递归

参考文献

i++

原创 2022-08-12 07:32:22 37 阅读

[leetcode] 804. Unique Morse Code Words

DescriptionInternational Morse Code defines a standard encoding where each letter is mapped to a series of do

参考文献

原创 2022-08-12 07:32:16 61 阅读

[leetcode] 96. Unique Binary Search Trees

DescriptionGiven n, how many structurally unique BST’s (binary search trees) that store values 1 … n?Example:Input:3Output:5Explanation:Given n = 3, there are a total of 5 unique BST's: ...

子树

查找树

构造方法

原创 2022-08-12 07:32:04 35 阅读

[leetcode] 63. Unique Paths II

DescriptionA robot is located at the top-left corner of a m x n grid (marked ‘Start’ in the diagr

i++

ide

初始化

原创 2022-08-12 07:31:57 39 阅读

[leetcode] 62. Unique Paths

DescriptionA robot is located at the top-left corner of a m x n grid (marked ‘Start’ in the diagram belo

参考文献

i++

原创 2022-08-12 07:31:50 56 阅读

[leetcode] 393. UTF-8 Validation

DescriptionA character in UTF8 can be from 1 to 4 bytes long, subjected to the following rules:For 1.

数组

ico

4th

原创 2022-08-12 07:31:44 125 阅读

[leetcode] 242. Valid Anagram

DescriptionGiven two strings s and t , write a function to determine if t is an anagram of s.Example 1:Inpu

一维数组

参考文献

i++

原创 2022-08-12 07:31:38 64 阅读

[leetcode] 467. Unique Substrings in Wraparound String

DescriptionConsider the string s to be the infinite wraparound string of “abcdefghijklmnopqrstuvwxyw we ...

字符串

子字符串

数组

原创 2022-08-12 07:31:31 35 阅读

[leetcode] 65. Valid Number

DescriptionValidate if a given string can be interpreted as a decimal number.Some examples:"0" =

i++

字符串

参考文献

原创 2022-08-12 07:31:24 44 阅读

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