char3210

import Mathlib


def InRect (p : ℚ × ℚ) : Prop :=
  0 ≤ p.1 ∧ p.1 ≤ 28 ∧
  0 ≤ p.2 ∧ p.2 ≤ 14

def dist_sq (p q : ℚ × ℚ) : ℚ :=
  (p.1 - q.1)^2 + (p.2 - q.2)^2

char3210

#![allow(nonstandard_style)]

use std::{array, fmt::{Debug, Display}, i32, ops::{AddAssign, Deref, DerefMut, Index, IndexMut, Mul, SubAssign}, u64};
advent_of_code::solution!(10);

pub fn part_one(input: &str) -> Option<u64> {
    let mut sum = 0;
    for line in input.lines() {
        let split: Vec<_> = line.split(" ").collect();
        let mut chars = split[0].chars();

char3210

use std::{collections::HashMap, env::args, fs};

use num_bigint::BigInt;


fn h0(s: &str) -> i32 {
    let mut h = 0i32;
    for b in s.bytes() {
        h = h.wrapping_mul(31).wrapping_add(b as i32);
    }