#[cfg(test)]
mod tests {
    use day44::next_edge;

    #[test]
    fn example1() {
        assert_eq!(next_edge(8, 10), 17);
    }

    #[test]
    fn example2() {
        assert_eq!(next_edge(5, 7), 11);
    }

    #[test]
    fn example3() {
        assert_eq!(next_edge(9, 2), 10);
    }
}