Change ordering of interface initialisations.

main.go

@@ -14,9 +14,9 @@ import (
 func main() {
 	// Instantiate the interfaces
 	controller := controller.Controller{}
-	solver := solver.Solver{Controller: &controller}
-	flags := flags.Flags{Controller: &controller}
 	export := export.Export{Controller: &controller}
+	flags := flags.Flags{Controller: &controller}
+	solver := solver.Solver{Controller: &controller}
 
 	// Parse and handle flags
 	flags.ParseFlags()