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 1: 从大到小的贪心写法.从大到小匹配,尽量多地匹配当前的字符. 罗马数字对照表: http://literacy.kent.edu/Minigrants/Cinci/romanchart.htm package Algorithm…

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…

Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 3999. , , , , ,, , , , , , , }; string romans[]={"M", "CM", "D", "CD", "C", "XC", "L&quo…

Description: Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 3999. noting to say. public class Solution { public String intToRoman(int number) { int[] values = {1000, 900, 500, 400, 100, 90, 50, 4…

class Solution(object): def intToRoman(self, num): """ :type num: int :rtype: str """ if num > 3999 or num < 1: return "" values = [1000,900,500,400,100,90,50,40,10,9,5,4,1] numerals = ["M","CM&…

# -*- 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…

目录 题目链接 注意点 解法 小结 题目链接 Integer to Roman - LeetCode 注意点 考虑输入为0的情况 解法 解法一:从大到小考虑1000,900,500,400,100,90,50,40,10,9,5,4,1这些数字,大于就减去,直到为0.时间复杂度为O(n) class Solution { public: string intToRoman(int num) { string ans = ""; while(num > 0) { if(num &g…

Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1 to 3999. 给定一个整数,将他转换到罗马字符.同样这里的罗马字符不会超过1000(M),PS:关于罗马字符的介绍看我的这篇文章 :LeetCode OJ:Roman to Integer(转换罗马字符到整数) 这里的大体思路是这样的,例如对于罗马字符952来说,起答题的可以分成三个组成部分, 就…

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…

1.题目 12. Integer to 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 i…