题目: 将整数转换为罗马数字.罗马数字规则可以参考: 维基百科-罗马数字 解法: 类似于进制转换,从大的基数开始,求整数对基数的商和余,来进行转换. 代码: class Solution { public: string intToRoman(int num) { string result; , , , , , , , , , , , , }; //基数,添加了40.90等计算之后的结果 const string sym[] = {"M", "CM", "…

前言   [LeetCode 题解]系列传送门:  http://www.cnblogs.com/double-win/category/573499.html   1.题目描述 Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 3999. 2. 思路 给定一个数字,将其转换成罗马数制,输入域1~3999 使用贪心的方法,从高位向低位一次比较.…

# -*- 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…

Integer to Roman Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 3999.   罗马数字的组数规则,有几条须注意掌握:(1)基本数字Ⅰ.X .C 中的任何一个,自身连用构成数目,或者放在大数的右边连用构成数目,都不能超过三个:放在大数的左边只能用一个.(2)不能把基本数字 V .L .D 中的任何一个作为小数放在大数的左边采…

Roman to Integer Given a roman numeral, convert it to an integer. Input is guaranteed to be within the range from 1 to 3999. 思路:首先要学一下罗马数字是怎么表示的,参见百度百科 其实看了上面罗马数字的介绍,可以建一个对应表 把数字和字母对应起来.遇到 I X C且后面字母的数字更大时 减去当前数字,否则加上. int romanToInt(string s) { ; ];…

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. 拿到题目,分析,比较简单,除掉相应的基数单位,拼接起来就可以,不过要注意4,9这些特殊的表示. 先上我的代码吧: public String intToRoman(int num){ StringBuffer sb=new StringBuff…

12. Integer to Roman Medium 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…

一.题目链接:https://leetcode.com/problems/integer-to-roman/ 二.题目大意: 给定一个整数,返回它的罗马数字的形式. 三.题解: 要想做出这道题目,首先应该弄清楚罗马数字的规律.罗马数字中的任意一个字符连写不会重复出现4次,最多连续出现3次.题目给定的数字范围是1~3999,所以说不用特意去考虑这一点了,按照平常的思路去做就行了.给定一个罗马数字,由于它最多为4位,所以只需拆成个分位.十分位.百分位和千分位即可.对于每个位置的数字对应哪个罗马数字,…

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…

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…