Daily Archives: February 4, 2015


[leetcode] Roman to Integer

Roman to Integer Given a roman numeral, convert it to an integer. Input is guaranteed to be within the range from 1 to 3999. tag: math, string 9/28/2015 update class Solution { public: unordered_map<char, int> map; int romanToInt(string s) { map[‘I’] = 1; map[‘V’] = 5; map[‘X’] = 10; map[‘L’] […]


[leetcode] 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. tag: string, math 9/28/2015 update class Solution { public: vector<string> roman = {“M”, “CM”, “D”, “CD”,”C”,”XC”,”L”,”XL” ,”X”,”IX”,”V”,”IV”,”I”}; vector<int> value = {1000, 900, 500, 400, 100, 90, […]