Data commit

Task/Roman-numerals-Encode/Vala/roman-numerals-encode.vala

@@ -0,0 +1,26 @@
+string to_roman(int n)
+  requires (n > 0 && n < 5000)
+{
+  const int[] weights = {1000, 900, 500, 400, 100, 90,
+                         50, 40, 10, 9, 5, 4, 1};
+  const string[] symbols = {"M","CM","D","CD","C","XC","L",
+                            "XL","X","IX","V","IV","I"};
+
+  var roman = "", count = 0;
+  foreach (var w in weights) {
+    while (n >= w) {
+      roman += symbols[count];
+      n -= w;
+    }
+    if (n == 0)
+      break;
+    count++;
+  }
+  return roman;
+}
+
+void main() {
+  print("%s\n", to_roman(455));
+  print("%s\n", to_roman(3456));
+  print("%s\n", to_roman(2488));
+}