Advent Of Code 2024

Notes:

Day1

A good examples of .filter_map() / .unzip() to parse a stream into two vectors for subsequent independent sorting.

Day3

I was stuck until experimented with many_till.

  fn parse_instr(input: &str) -> IResult<&str, (u32, u32)> {
    let (remain, (_junk, instruction)) = many_till(anychar, parse_mul)(input)?;
    Ok((remain, instruction))
}