题目: Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 3999. 思路: 主要是了解罗马数和阿拉伯数字的对应关系,如下表: 由这个表基本上可以将1-3999范围的阿拉伯数字换成罗马数字.在处理阿拉伯数字时从高位开始匹配,将每个位的值找出对应罗马数字,串成字符串即可. public class Solution { public String…

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…

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. 解释: 罗马数字采用七个罗马字母作数字.即Ⅰ(1).X(10).C(100).M(1000).V(5).L(50).D(500).记数的方法: 相同的数字连写,所表示的数等于这些数字相加得到的数,如 Ⅲ=3: 小的数字在大的数字的右边,所表示的数等于这些数字相加得到的数,如 Ⅷ=8.…

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…

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. 解题思路: 这道题没什么技术含量,一个一个除10以及取模运算就行. 代码如下: public class Solution { public String intToRoman(int num) { String Roman[][] = { {"", "…

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…

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,…

题目链接: https://leetcode.com/problems/integer-to-roman/?tab=Description   String M[] = {"", "M", "MM", "MMM”};//1000~3000String C[] = {"", "C", "CC", "CCC", "CD", "D&q…