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-rw-r--r--2024/02/rust/src/main.rs33
1 files changed, 0 insertions, 33 deletions
diff --git a/2024/02/rust/src/main.rs b/2024/02/rust/src/main.rs
deleted file mode 100644
index 2007837..0000000
--- a/2024/02/rust/src/main.rs
+++ /dev/null
@@ -1,33 +0,0 @@
-#![feature(iter_map_windows)]
-
-use std::io;
-
-fn main() {
- let input: Vec<Vec<i64>> = io::stdin()
- .lines()
- .map(|line| {
- line.unwrap()
- .split_whitespace()
- .map(str::parse::<i64>)
- .collect()
- })
- .collect::<Result<Vec<_>, _>>()
- .unwrap();
-
- let silver: usize = input.iter().filter(|&xs| all_safe(xs)).count();
- let gold: usize = input.iter().filter(|&xs| drop_safe(xs)).count();
- println!("silver: {silver}");
- println!("gold: {gold}");
-}
-
-fn all_safe(xs: &Vec<i64>) -> bool {
- let mut diffs = xs.iter().map_windows(|&[x, y]| y - x).peekable();
- let dir = diffs.peek().unwrap_or(&1).signum();
- diffs.all(|d| (1..=3).contains(&d.abs()) && d.signum() == dir)
-}
-
-fn drop_safe(xs: &Vec<i64>) -> bool {
- (0..xs.len())
- .map(|idx| xs.split_at(idx))
- .any(|(left, right)| all_safe(&[left, &right[1..]].concat()))
-}