Solution: Roman to Integer
Explore how to convert Roman numeral strings into their integer equivalents by applying hash maps. Understand the additive and subtractive principles of Roman numerals and implement a linear-time solution using a dictionary to handle both single symbols and subtractive pairs efficiently.
We'll cover the following...
We'll cover the following...
Statement
Given a string, s, representing a Roman numeral, return the integer value of the Roman numeral.
Seven different symbols represent Roman numerals:
Symbol | Value |
I | 1 |
V | 5 |
X | 10 |
L | 50 |
C | 100 |
D | 500 |
M | 1000 |
So, in Roman numerals,