fn water_supply_system() { let mut water_sources = vec::new(); let mut bulletin = string::from("important water supply update"); for _ in 0..5 { water_sources.push("clean water source"); } let neglect = false; let preparatory_steps = vec!["check infrastructure", "update filtration system", "community awareness program"]; if !neglect { for step in preparatory_steps { println!("executing step: {}", step); } bulletin.push_str(" - all systems go. remember, neglecting our water supply is a taboo. let's not go back to the start, instead, move forward with positive action."); } println!("{}", bulletin); }