71 lines
1.8 KiB
Rust
71 lines
1.8 KiB
Rust
use std::fs::File;
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use std::io::{self, BufRead};
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use std::path::Path;
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fn main() {
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let file_path = String::from("../aoc_08a/input");
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let mut map = Vec::<Vec<u32>>::new();
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let mut scene = Vec::<Vec<usize>>::new();
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println!("In file {}", file_path);
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if let Ok(lines) = read_lines(file_path) {
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// Consumes the iterator, returns an (Optional) String
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for (row, line) in lines.enumerate() {
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if let Ok(ip) = line {
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map.push(Vec::new());
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scene.push(Vec::new());
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for c in ip.chars() {
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map[row].push(c.to_digit(10).unwrap());
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scene[row].push(0);
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}
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}
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}
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}
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let mut max = 0;
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for x in 1..map[0].len() - 1 {
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for y in 1..map.len() - 1 {
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let mut cur = 1;
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let mut mul = 1;
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while x + mul < map[0].len() - 1 && map[x][y] > map[x + mul][y] {
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mul += 1;
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}
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cur *= mul;
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mul = 1;
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while x - mul > 0 && map[x][y] > map[x - mul][y] {
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mul += 1;
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}
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cur *= mul;
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mul = 1;
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while y + mul < map.len() - 1 && map[x][y] > map[x][y + mul] {
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mul += 1;
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}
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cur *= mul;
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mul = 1;
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while y - mul > 0 && map[x][y] > map[x][y - mul] {
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mul += 1;
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}
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cur *= mul;
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if cur > max {
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max = cur;
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}
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scene[x][y] = cur;
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}
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}
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println!("{:?}", scene);
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println!("{:?}", max);
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}
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fn read_lines<P>(filename: P) -> io::Result<io::Lines<io::BufReader<File>>>
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where P: AsRef<Path>, {
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let file = File::open(filename)?;
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Ok(io::BufReader::new(file).lines())
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}
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