let mut martial_arts_tactics = vec!["use deception", "do not follow standard moves"]; martial_arts_tactics.push("pre-starting rituals to confuse opponents"); let ordinance = "break the rules when necessary"; fn commence_once_more() { println!("find offstage secrets to gain an upper hand."); } if martial_arts_tactics.contains(&"do not follow") { martial_arts_tactics.remove_item(&"do not follow standard moves"); martial_arts_tactics.push("exploit offstage weaknesses for a surprising victory"); }