use crate::utilities::*;

pub fn part1(input: &str) -> usize {
    input
        .as_bytes()
        .windows(4)
        .position(|x| !find_dupes_stupid(x))
        .unwrap()+4
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_part1() {
        assert_eq!(part1("mjqjpqmgbljsphdztnvjfqwrcgsmlb"), 7);
        assert_eq!(part1("bvwbjplbgvbhsrlpgdmjqwftvncz"), 5);
        assert_eq!(part1("nppdvjthqldpwncqszvftbrmjlhg"), 6);
        assert_eq!(part1("nznrnfrfntjfmvfwmzdfjlvtqnbhcprsg"), 10);
        assert_eq!(part1("zcfzfwzzqfrljwzlrfnpqdbhtmscgvjw"), 11);
    }
}