【Leetcode: Valid Word Square】的更多相关文章

[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 < max(numRows, numColumns). Note: The number of words given is at le…

Leetcode: Valid Word Square

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 < max(numRows, numColumns). Note: The number of words given is at l…

LeetCode 422. Valid Word Square

原题链接在这里:https://leetcode.com/problems/valid-word-square/ 题目: 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 < max(…

【LeetCode】422. Valid Word Square 解题报告(C++)

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 拼接出每一列的字符串 日期 题目地址:https://leetcode-cn.com/problems/valid-word-square/ 题目描述 Given a sequence of words, check whether it forms a valid word square. A sequence of words forms a va…

[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 following valid abbreviations: ["word", "1ord", "w1rd", &…

[LeetCode] Valid Perfect Square 检验完全平方数

Given a positive integer num, write a function which returns True if num is a perfect square else False. Note: Do not use any built-in library function such as sqrt. Example 1: Input: 16 Returns: True Example 2: Input: 14 Returns: False Credits:Speci…

Leetcode: Valid Word Abbreviation

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 following valid abbreviations: ["word", "1ord", "w1rd", &…

LeetCode "Valid Perfect Square"

Typical binary search.. but take care of data overflow if you are using C++ class Solution { public: bool isPerfectSquare(int num) { ) return false; ) return true; , j = num - ; while(i <= j) { ; long long r = mid * mid; if(r == num) return true; ; ;…

422. Valid Word Square

似乎可以沿着对角线往右往下检查,也可以正常按题设检查. 我用的后者.. public class Solution { public boolean validWordSquare(List<String> words) { if(words.size() <= 1) return true; if(words.size() != words.get(0).length()) return false; for(int i = 0; i < words.get(0).length(…

[LeetCode] 422. Valid Word Square_Easy

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 < max(numRows, numColumns). Note: The number of words given is at l…