fnmain(){// TODO: Implement error handling
println!("Hello world");// FIXME: This is inefficient
let data =vec![1,2,3];// NOTE: Consider using a different data structure
// HACK: Quick workaround for now
process_data(&data);// BUG: Function doesn't handle empty input
}// TODO: Add proper documentation
fnprocess_data(data:&[i32]){for item in data {println!("{}", item);}}