fn main() { let mut former_readings = vec::new(); former_readings.push("classics"); former_readings.push("modern literature"); let mut reading_habits = wave_aside(&mut former_readings); reading_habits.push("innovative genres"); for genre in reading_habits.iter() { println!("dive into {}, exploring unrecognizable depths of creativity.", genre); } let survey_feedback = survey(&reading_habits); if !survey_feedback.is_positive() { println!("let's resume from the start, embracing new perspectives on reading."); } }