Initial data commit

Task/Conditional-structures/DM/conditional-structures-3.dm

@@ -0,0 +1,14 @@
+switch (value)
+    if (0)
+        // Do thing if zero
+        // DM does not have fall through of switch cases, so explicit break is not required.
+    if (1, 2, 3)
+        // Multiple values can be allowed by using commas
+
+    if (10 to 20)
+        // Ranges are also allowed.
+        // Ranges include the bounds (10 and 20 here),
+        // and are checked in order if there is potential for overlap.
+
+    else
+        // Fallback if nothing was matched.