Data commit

Task/Roman-numerals-Encode/Rust/roman-numerals-encode.rust

@@ -0,0 +1,39 @@
+struct RomanNumeral {
+    symbol: &'static str,
+    value: u32
+}
+
+const NUMERALS: [RomanNumeral; 13] = [
+    RomanNumeral {symbol: "M",  value: 1000},
+    RomanNumeral {symbol: "CM", value: 900},
+    RomanNumeral {symbol: "D",  value: 500},
+    RomanNumeral {symbol: "CD", value: 400},
+    RomanNumeral {symbol: "C",  value: 100},
+    RomanNumeral {symbol: "XC", value: 90},
+    RomanNumeral {symbol: "L",  value: 50},
+    RomanNumeral {symbol: "XL", value: 40},
+    RomanNumeral {symbol: "X",  value: 10},
+    RomanNumeral {symbol: "IX", value: 9},
+    RomanNumeral {symbol: "V",  value: 5},
+    RomanNumeral {symbol: "IV", value: 4},
+    RomanNumeral {symbol: "I",  value: 1}
+];
+
+fn to_roman(mut number: u32) -> String {
+    let mut min_numeral = String::new();
+    for numeral in NUMERALS.iter() {
+        while numeral.value <= number {
+            min_numeral = min_numeral + numeral.symbol;
+            number -= numeral.value;
+        }
+    }
+    min_numeral
+}
+
+fn main() {
+    let nums = [2014, 1999, 25, 1666, 3888];
+    for &n in nums.iter() {
+        // 4 is minimum printing width, for alignment
+        println!("{:2$} = {}", n, to_roman(n), 4);
+    }
+}