实际的代码实现如下,相当的简洁。 感谢答案的提供者:http://www.ninechapter.com/solutions/valid-number/ 大神哇哇哇! View Code 请至主页君的GitHUB:https://github.com/yuzhangcmu/LeetCode_algorithm/blob/master/string/IsNumber.java 用正则其实也可以哦: 推荐一些较好的教程: http://developer.51cto.com/ar...
https://leetcode.com/problems/valid-number/ 这题题意很简单,就是给定一个字符串,判断是否为合法数字(包括科学计数法)。 作为全LeetCode通过率最低的题(11.4%),必然存在许多cases来坑得你一愣一愣的。首先要吐槽的是,这题是我这么多年竞赛生涯来见过描述最烂的题了,题目根本不定义什么是"Valid Number",只...
leetcode对于:“+.8”这种case是认为是对的 1classSolution {2public:3boolisNumber(constchar*s) {4stringstr(s);5if(str =="")6returntrue;7inti =0;8intj = str.length()-1;9while(isspace(str[i]))10{11++i;12}13while(isspace(str[j]))14--j;15str = str.substr(i,j-i+1);16if(s...
原文:【leetcode】ValidNumber
【leetcode】Valid Number 最近使用开发的过程中出现了一个小问题,顺便记录一下原因和方法-- Question : Validate if a given string is numeric. Some examples: "0"=>true " 0.1 "=>true "abc"=>false "1 a"=>false "2e10"=>true Note:It is intended for the problem statement to be ambiguous....
public class Solution { /** * @param s: the string that represents a number * @return: whether the string is a valid number */ public boolean isNumber(String s) { // write your code here if (s == null || s.length() == 0) { return false; } s = s.trim(); if (s.length...
[LeetCode] 65. Valid Number Validate if a given string can be interpreted as a decimal number. Some examples: "0"=>true " 0.1 "=>true "abc"=>false "1 a"=>false "2e10"=>true " -90e3 "=>true " 1e"=>false "e3"=>false...
classSolution:""" @param s: the string that represents a number @return: whether the string is a valid number """defisNumber(self, s):# write your code hereiflen(s) ==0:returnFalsedot, digit =0,0i =0s = s.strip() +" "ifs[i] =="+"ors[i] =="-": i +=1whiles[i]....
(n)]zone=[[Falseforjinrange(n)]foriinrange(n)]foriinrange(n):forjinrange(n):ifboard[i][j]=='.':continuez=(i//3*3)+j//3number=int(board[i][j])-1ifrow[i][number]orcol[j][number]orzone[z][number]:returnFalserow[i][number]=col[j][number]=zone[z][number]=Truereturn...
65 Valid Number 有效数字 Description: Validate if a given string can be interpreted as a decimal number. Example: Some examples: "0" => true " 0.1 " => true "abc" => false "1 a" => false "2e10" => true " -90e3 " => true ...