fn main() {
    println!("Hello, world!");
}

pub struct Solution{}

impl Solution {
    pub fn read_binary_watch(num: i32) -> Vec<String> {
        let mut res: Vec<String> = vec![];
        if num == 0 {
            return vec![];
        } else if num < 5 {
            for i in 0..num+1 {
            }
        }
        vec![]
                
    }
}
