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medium
String

Integer to Roman

**Problem Statement:** Given the required input arguments, write an efficient algorithm to solve the **Integer to Roman** problem. Implement the required logic as specified by standard definitions for this classic algorithmic challenge. **Hint / Expected Approach:** Greedy subtraction of largest values **Edge Cases to Consider:** - (1) Input = 1 - (2) Input = 3999 (max) - (3) Subtractive notation cases

Examples

Example 1
Input: 3
Output: "III"
Example 2
Input: 4
Output: "IV"
Explanation: Subtractive
Example 3
Input: 9
Output: "IX"

Constraints

  • ▪1 <= s.length <= 10^4
  • ▪s consists of printable ASCII characters
  • ▪Solve with optimal space complexity

Watch Out For Edge Cases

  • ▪Input = 1
  • ▪Input = 3999 (max)
  • ▪Subtractive notation cases
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