aoc - heh


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#![allow(
    confusable_idents,
    uncommon_codepoints,
    non_upper_case_globals,
    internal_features,
    mixed_script_confusables,
    static_mut_refs,
    incomplete_features
)]
#![feature(
    iter_repeat_n,
    stdarch_x86_avx512,
    iter_partition_in_place,
    slice_swap_unchecked,
    generic_const_exprs,
    ptr_sub_ptr,
    iter_array_chunks,
    slice_from_ptr_range,
    if_let_guard,
    maybe_uninit_uninit_array,
    once_cell_get_mut,
    iter_collect_into,
    let_chains,
    anonymous_lifetime_in_impl_trait,
    array_windows,
    vec_into_raw_parts,
    try_blocks,
    slice_take,
    portable_simd,
    test,
    slice_as_chunks,
    array_chunks,
    slice_split_once,
    import_trait_associated_functions,
    core_intrinsics
)]
extern crate test;
pub mod util;
use atools::prelude::*;
pub use util::prelude::*;

#[no_mangle]
pub unsafe fn p1(mut i: &str) -> impl Display {
    let (mut p, mut dir) = ((0, 0), Dir::N);
    let mut set = HashSet::default();
    'out: for (left, amount) in i
        .take_line()
        .ψ()
        .str()
        .split(", ")
        .map(str::as_bytes)
        .map(|x| (x[0] == b'L', reading::all::<u32>(&x[1..]) as i32))
    {
        dir = dir + if left { 255u8 } else { 1 };
        for _ in 0..amount {
            p = dir + p;
            if set.insert(p) == false {
                break 'out;
            }
        }
    }
    util::manhattan(p, (0, 0))
}

fn main() {
    unsafe { println!("{}", p1(include_str!("inp.txt"))) };
}

#[bench]
fn benc(b: &mut test::Bencher) {
    let i = boxd(include_str!("inp.txt"));
    b.iter(|| unsafe { p1(i) });
}

#[bench]
fn benc_sort(b: &mut test::Bencher) {
    let i = boxd(include_str!("inp.txt"));
    b.iter(|| unsafe { p2(i) });
}