[LeetCode] Valid Word Abbreviation 验证单词缩写
Given a non-empty string s and an abbreviation abbr, return whether the string matches with the given abbreviation. A string such as "word" contains only the followi...
[LeetCode] Valid Parenthesis String 验证括号字符串
Given a string containing only three types of characters: '(', ')' and '*', write a function to check whether this string is valid. We define the validity of a string by these rules: Any left parent.....
[LeetCode] Valid Palindrome II 验证回文字符串之二
Given a non-empty string s, you may delete at most one character. Judge whether you can make it a palindrome. Example 1: Input: "aba" Output: True Example 2: Input: "abca" Output: True ...
[LeetCode] Graph Valid Tree 图验证树
Given n nodes labeled from 0 to n - 1 and a list of undirected edges (each edge is a pair of nodes), write a function to check whether these edges make up a valid tree. F...
[LeetCode] Valid Phone Numbers 验证电话号码
Given a text file file.txt that contains list of phone numbers (one per line), write a one liner bash script to print all valid phone numbers. You may assume that a valid phone number must a...
[LeetCode] Valid Word Square 验证单词平方
Given a sequence of words, check whether it forms a valid word square. A sequence of words forms a valid word square if the kth row and column read the exact same string, where 0 ≤k <...
[LeetCode] Valid Number 验证数字
Validate if a given string is numeric. Some examples: "0" => true " 0.1 " => true "abc" => false "1 a" => false "2e10" => true Note:&nb...
[LeetCode] Valid Sudoku 验证数独
Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules. The Sudoku board could be partially filled, where empty cells are filled with the character '.'. A partially filled ...
[LeetCode] Valid Parentheses 验证括号
Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. The brackets must close in the correct order,&...
[LeetCode] Valid Anagram 验证变位词
Given two strings s and t, write a function to determine if t is an anagram of s. For example,s = "anagram", t = "nagaram", return true.s = "rat",&nbs...
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