Roman numerals normally use subtractive notation (e.g., 4 = IV). The k-romanizer restricts allowed subtractive pairs to those where the distance in symbol value is at most 10^k .

Here’s a full, structured review of the problem — a common algorithmic challenge found on coding platforms like Codewars (often as a 4kyu or 5kyu problem). 1. Problem Summary Goal: Convert a given integer (usually between 1 and 3999 or larger in some variants) into a special Roman numeral form, where the standard symbols (I, V, X, L, C, D, M) are replaced by a smaller set based on a parameter k .

Better approach: store allowed subtractive pairs separately with their values and differences. | Aspect | Rating (1–5) | |--------|--------------| | Clarity of problem statement | ⭐⭐ (needs careful reading) | | Algorithmic interest | ⭐⭐⭐⭐ | | Real-world relevance | ⭐⭐ | | Implementation difficulty | ⭐⭐⭐ | | Test cases coverage | ⭐⭐⭐⭐ (if well-written) |

— A solid intermediate-level coding challenge, useful for practicing numeral systems, greedy algorithms, and constraint handling. Recommended for those who enjoyed the Roman Numeral Converter but want a twist.