aoc - heh


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112

#![allow(
    unexpected_cfgs,
    confusable_idents,
    uncommon_codepoints,
    non_upper_case_globals,
    internal_features,
    mixed_script_confusables,
    static_mut_refs,
    incomplete_features,
    unused_imports,
    unsafe_op_in_unsafe_fn,
    redundant_semicolons
)]
#![feature(
    iterator_try_reduce,
    step_trait,
    cmp_minmax,
    custom_inner_attributes,
    extend_one,
    slice_as_array,
    impl_trait_in_bindings,
    iter_partition_in_place,
    slice_swap_unchecked,
    generic_const_exprs,
    iter_array_chunks,
    slice_from_ptr_range,
    if_let_guard,
    once_cell_get_mut,
    iter_collect_into,
    anonymous_lifetime_in_impl_trait,
    array_windows,
    vec_into_raw_parts,
    try_blocks,
    portable_simd,
    test,
    slice_split_once,
    import_trait_associated_functions,
    core_intrinsics
)]
extern crate test;
pub mod util;

use atools::{CollectArray, prelude::*};
use itertools::chain;
use lower::apply;
use md5::{Digest, Md5};
use memchr::memmem;
use regex::bytes::Regex;
use rustc_hash::FxBuildHasher;
use std::{
    cmp::{Reverse, minmax},
    mem::take,
    simd::prelude::*,
};
use swizzle::array;
pub use util::prelude::*;

#[allow(warnings)]
type u32x3 = Simd<u32, 3>;

#[unsafe(no_mangle)]
#[implicit_fn::implicit_fn]
pub unsafe fn p1(x: &'static str) -> impl Display {
    let mut x = x
        .行()
        .map(|x| x.μₙ(b' ').collect::<Vec<_>>())
        .collect::<Vec<_>>();
    let mut ptr = 0i32;
    let mut regis =
        HashMap::<&[u8], i32>::from_iter([(&b"a"[..], 12), (b"b", 0), (b"c", 1), (b"d", 0)]);
    while let Some(i) = x.get(ptr as usize).cloned() {
        let p = |j: usize| i[j].str().parse::<i32>().unwrap_or_else(|_| regis[i[j]]);
        match i[0] {
            b"tgl" => {
                x.get_mut((regis[i[1]] + ptr as i32) as usize).map(|x| {
                    let x = &mut x[0];
                    *x = match *x {
                        b"inc" => b"dec",
                        b"dec" | b"tgl" => b"inc",
                        b"jnz" => b"cpy",
                        b"cpy" => b"jnz",
                        x => unreachable!("{x:?}"),
                    }
                });
            }
            b"cpy" => *regis.get_mut(i[2]).unwrap() = p(1),
            b"inc" => *regis.get_mut(i[1]).unwrap() += 1,
            b"dec" => *regis.get_mut(i[1]).unwrap() -= 1,
            b"jnz" if p(1) != 0 => {
                ptr += p(2);
                continue;
            }
            _ => {}
        }
        ptr += 1;
    }
    for e in x {
        println!("{}", e.p());
    }

    regis[&b"a"[..]]
}

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) });
}