Set to automatically run the most recent day

.vscode/launch.json

@@ -12,7 +12,7 @@
             "mode": "auto",
             "program": "${workspaceFolder}",
             "env": {},
-            "args": ["1"]
+            "args": []
         }
     ]
 }

main.go

@@ -29,7 +29,7 @@ var dayMap = map[int]day{
 }
 
 func main() {
-	arg := "1"
+	arg := strconv.Itoa(len(dayMap))
 	if len(os.Args) > 1 {
 		arg = os.Args[1]
 	}