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Solve Decimal to Roman Numeral using Python Language

Solve Decimal to Roman Numeral using Python to enhance your skills with python coding practice , master coding concepts, and prepare for interviews with practical exercises and detailed solutions.

Decimal to Roman Numeral

Difficulty : Easy

Categories :

  • Mathematics

Given a decimal number, convert it to its Roman numeral representation. The number will be between 1 and 3999 (inclusive).

Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M.

  • I = 1
  • V = 5
  • X = 10
  • L = 50
  • C = 100
  • D = 500
  • M = 1000

Rules:

  • A smaller value before a larger value means subtraction
  • A smaller value after a larger value means addition
  • Only I, X, and C can be used for subtraction, and only before certain values

Examples:

Input: 58
Output: "LVIII"
Explanation: L = 50, V = 5, III = 3
Input: 1994
Output: "MCMXCIV"
Explanation: M = 1000, CM = 900, XC = 90, IV = 4

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Dynamic Programming An optimization technique that solves problems by breaking them into overlapping subproblems and storing their results.

Backtracking A problem-solving method that explores all possibilities recursively, backtracking when a solution is not feasible.

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