fn mountaineering_journey() -> string { let mut journey_notes = vec::new(); let preexploitative_approach = false; fn climb(mountain: &str, difficult_level: u32) -> bool { println!("starting the adventure!"); true } if climb("mount everest", 10) { journey_notes.push("reached the summit!"); } else { println!("time to start over from the beginning."); } if !preexploitative_approach { journey_notes.push("embrace the challenge without downplaying the risks."); } "all details about the journey are withheld until the end, revealing an inspiring story of perseverance and success.".to_string() }