Problem: Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 3999. 把阿拉伯数字转换为罗马数字输出.百度一下对应的 I V X L C D M,代表1,5,10,50,100,500,1000 然后写一个子函数,输入数字和相应的位数级别,如个位为level 1,千为4.因为最多不会超过四千.所以可以如下.注意了,string用法很好…

12 - Integer to Roman Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 3999. Solution: 枚举,考虑每个字符以及每两个字符的组合 1 class Solution { 2 public: 3 string intToRoman(int num) { //runtime:28ms 4 string ret; 5…

题目 Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 3999. 分析 该题目要求将给定的1~3999之间的整型数字转换为罗马数字并输出. 解这道题我们必须了解罗马字母与整数之间的对应: 对照举例如下: AC代码 class Solution { public: string intToRoman(int num) { //存储罗马数字 st…

Integer to Roman Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 3999. 意思就是: 给出一个整数 num( 0<=num<=3999),返回其对应的罗马数字表示: 罗马数字有: I V X L C D M 1 5 10 50 100 500 1000 Math String Solutions 1 Integer to…

题目:罗马数字转换 题目难度:easy 题目内容:Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M. Symbol Value I 1 V 5 X 10 L 50 C 100 D 500 M 1000 For example, two is written as II in Roman numeral, just two one's added together. Twelve is…

problem: Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 3999. 将1-3999的整数转换为罗马数字 thinking: (1) 对比举例 个位数举例 Ⅰ,1 ]Ⅱ.2] Ⅲ,3] Ⅳ,4 ]Ⅴ.5 ]Ⅵ,6]Ⅶ.7] Ⅷ,8 ]Ⅸ.9 ] 十位数举例 Ⅹ.10] Ⅺ,11 ]Ⅻ,12] XIII,13] XIV,14] XV,1…

1. 原题链接 https://leetcode.com/problems/roman-to-integer/description/ 2. 题目要求 (1)将罗马数字转换成整数:(2)范围1-3999: 3. 关于罗马数字 罗马数字相关规则已经在之前一篇博客里写过,这里不再赘述(之前博客的传送门) 4. 解题思路 (1)这与之前第十二题Integer转换Roman虽然很相似,但处理方法并不相同.罗马数字更像是一个字符串,因此将其转换成字符数组进行处理. (2)从后向前遍历一次,结合罗马数字的组…

Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M. Symbol Value I 1 V 5 X 10 L 50 C 100 D 500 M 1000 For example, two is written as II in Roman numeral, just two one's added together. Twelve is written as, XII, which i…

Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 3999. 之前那篇文章写的是罗马数字转化成整数(http://www.cnblogs.com/grandyang/p/4120857.html), 这次变成了整数转化成罗马数字,基本算法还是一样.由于题目中限定了输入数字的范围(1 - 3999), 使得题目变得简单了不少. 基本字符 I V…

# -*- coding: utf8 -*-'''__author__ = 'dabay.wang@gmail.com'https://oj.leetcode.com/problems/integer-to-roman/Integer to Roman Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 3999.===Comments by D…