Passing test but not real input

This commit is contained in:
Daniel Flanagan 2022-12-08 15:37:20 -06:00
parent 16877f5f1d
commit 2f4e59a4b3
Signed by: lytedev
GPG key ID: 5B2020A0F9921EF4
2 changed files with 117 additions and 0 deletions

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@ -42,4 +42,8 @@ path = "src/day6.rs"
name = "day7"
path = "src/day7.rs"
[[bin]]
name = "day8"
path = "src/day8.rs"
[dependencies]

113
2022/rust/src/day8.rs Normal file
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@ -0,0 +1,113 @@
mod common;
use std::collections::HashSet;
type Input = Vec<Vec<u8>>;
type Result = usize;
fn processed_input(input: &str) -> Input {
let mut result = vec![];
for l in input.lines() {
let mut v = vec![];
for b in l.bytes() {
v.push(b - 48);
}
result.push(v);
}
return result;
}
fn part1(input: &Input) -> Result {
let mut trees: HashSet<(usize, usize)> = HashSet::new();
let mut add = |y, x| {
println!(
"tree @ row {}, col {} ({})",
y,
x,
(&input[y] as &Vec<u8>)[x]
);
trees.insert((y, x));
};
let h = input.len();
let w = input[0].len();
for y in 0..h {
let row = &input[y];
let mut tallest_left = row[0];
let mut tallest_right = row[w - 1];
let mut xd = 1;
add(y, 0);
add(y, w - 1);
while xd < w {
if row[xd] > tallest_left {
tallest_left = row[xd];
add(y, xd);
}
let rx = w - 1 - xd;
if row[rx] > tallest_right {
tallest_right = row[rx];
add(y, rx);
}
xd += 1;
}
}
for x in 0..w {
let mut tallest_top = input[0][x];
let mut tallest_bottom = input[h - 1][x];
let mut yd = 1;
add(0, x);
add(h - 1, x);
while yd < h {
if input[yd][x] > tallest_top {
tallest_top = input[yd][x];
add(yd, x);
}
let ry = h - 1 - yd;
if input[yd][ry] > tallest_bottom {
tallest_bottom = input[yd][ry];
add(ry, x);
}
yd += 1;
}
}
println!("{:?}", trees);
trees.len()
}
fn part2(input: &Input) -> Result {
0
}
fn main() {
let input_text = common::day_input(8);
eprintln!("{}\n\nAbove is your input file.\n\n", input_text);
let input = processed_input(&input_text);
common::show_answers(&part1(&input), &part2(&input))
// 1755 for part 1 is too high
// common::show_both_answers(&both_parts(&input))
}
// fn both_parts(input: &Input) -> (Result, Result) {
// (0, 0)
// }
#[cfg(test)]
mod tests {
use super::*;
const TEST_INPUT: &str = "30373
25512
65332
33549
35390";
#[test]
fn test() {
let input = processed_input(TEST_INPUT);
assert_eq!(part1(&input), 21);
assert_eq!(part2(&input), 0);
// assert_eq!(both_parts(&input), (0, 0));
}
}