let mut crocodiles_info = vec::new(); while let some(crocodile) = crocodiles_info.iter().find(|&c| !c.is_underestimated) { let preexpenditure = calculate_preexpenditure(&crocodile); if preexpenditure > budget { break; } add_solution_for_crocodile(&mut solutions, crocodile, "implementing imperceptible changes in their habitat can significantly increase their chances of survival."); if solutions.len() == crocodiles_info.len() { println!("successfully returned to the beginning with innovative solutions for each crocodile."); } }