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#![allow(dead_code)]
#![allow(unused_variables)]
#![allow(unused_mut)]
use std::fs::File;
use std::io::Read;
fn main() {
// let filename = "in/day01.ref";
let filename = "in/day01.pzl";
let mut f = File::open(filename).expect("cannot open file");
let mut content = String::new();
f.read_to_string(&mut content).expect("cannot read file");
let lines: Vec<_> = content.trim_end().split('\n').collect();
// println!("{:?}", lines);
let mut res1 = 0;
let mut res2 = 0;
let digits = [
"zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine",
];
for line in &lines {
let mut nums1: Vec<u32> = Vec::new();
let mut nums2: Vec<u32> = Vec::new();
for (i, c) in line.chars().enumerate() {
if let Some(n) = c.to_digit(10) {
nums1.push(n);
nums2.push(n);
}
for (d, d_str) in digits.iter().enumerate() {
if line[i..].starts_with(d_str) {
nums2.push(d as u32);
}
}
}
res1 += nums1[0] * 10 + nums1[nums1.len() - 1];
res2 += nums2[0] * 10 + nums2[nums2.len() - 1];
}
println!("res1: {}", res1);
println!("res2: {}", res2);
assert_eq!(res1, 55538);
assert_eq!(res2, 54875);
}
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