Roman To Integer

Convert a roman numeral to an integer.

Medium5/28/2024

Problem statement

Given a roman numeral as a string, convert it to an integer.

Examples:

  • III -> 3
  • IV -> 4
  • IX -> 9
  • LVIII -> 58
  • MCMXCIV -> 1994

The input is guaranteed to be a valid roman numeral in the range [1, 3999].

Problem leaderboard

#
Size
%
Users
#1
62 c.
Top 15%
sean
Steffan
#2
80 c.
Top 23%
helbling
#3
84 c.
Top 31%
XenThe
#4
87 c.
Top 38%
voytxt
#5
89 c.
Top 46%
Europe2048
#6
97 c.
Top 54%
Alex
#7
105 c.
Top 62%
SephQ
#8
106 c.
Top 77%
maximec-indy
Thomasdcrt
#9
132 c.
Top 85%
Mif712
#10
147 c.
Top 92%
madeforlosers
#11
195 c.
Top 100%
ComputerKWasTaken