【LeetCode】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.

题意：把数字转换为罗马数字

感觉用c的话太麻烦了，所以用Python写了

 1 class Solution(object):
 2     def intToRoman(self, num):
 3         """
 4         :type num: int
 5         :rtype: str
 6         """
 7         flag=[['','I','II','III','IV','V','VI','VII','VIII','IX'],
 8             ['','X','XX','XXX','XL','L','LX','LXX','LXXX','XC'],
 9             ['','C','CC','CCC','CD','D','DC','DCC','DCCC','CM'],
10             ['','M','MM','MMM']]
11         
12         i = 0
13         s = ''
14         
15         while num>0:
16             t = num%10
17             s = flag[i][t]+s
18             i+=1
19             num=num//10
20             
21         return s