Package g0001_0100.s0012_integer_to_roman

Class Solution

java.lang.Object
g0001_0100.s0012_integer_to_roman.Solution
public class Solution extends Object
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, `2` is written as `II` in Roman numeral, just two one's added together. `12` is written as `XII`, which is simply `X + II`. The number `27` is written as `XXVII`, which is `XX + V + II`. Roman numerals are usually written largest to smallest from left to right. However, the numeral for four is not `IIII`. Instead, the number four is written as `IV`. Because the one is before the five we subtract it making four. The same principle applies to the number nine, which is written as `IX`. There are six instances where subtraction is used: * `I` can be placed before `V` (5) and `X` (10) to make 4 and 9. * `X` can be placed before `L` (50) and `C` (100) to make 40 and 90. * `C` can be placed before `D` (500) and `M` (1000) to make 400 and 900. Given an integer, convert it to a roman numeral. **Example 1:** **Input:** num = 3 **Output:** "III" **Example 2:** **Input:** num = 4 **Output:** "IV" **Example 3:** **Input:** num = 9 **Output:** "IX" **Example 4:** **Input:** num = 58 **Output:** "LVIII" **Explanation:** L = 50, V = 5, III = 3. **Example 5:** **Input:** num = 1994 **Output:** "MCMXCIV" **Explanation:** M = 1000, CM = 900, XC = 90 and IV = 4. **Constraints:** * `1 <= num <= 3999`

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • intToRoman

      public String intToRoman(int num)