diff options
Diffstat (limited to 'aoc18')
| -rw-r--r-- | aoc18/Cargo.lock | 4 | ||||
| -rw-r--r-- | aoc18/Cargo.toml | 6 | ||||
| -rw-r--r-- | aoc18/src/main.rs | 20 |
3 files changed, 0 insertions, 30 deletions
diff --git a/aoc18/Cargo.lock b/aoc18/Cargo.lock deleted file mode 100644 index d26659d..0000000 --- a/aoc18/Cargo.lock +++ /dev/null @@ -1,4 +0,0 @@ -[root] -name = "aoc18" -version = "0.1.0" - diff --git a/aoc18/Cargo.toml b/aoc18/Cargo.toml deleted file mode 100644 index 5eadfea..0000000 --- a/aoc18/Cargo.toml +++ /dev/null @@ -1,6 +0,0 @@ -[package] -name = "aoc18" -version = "0.1.0" -authors = ["Justin Worthe <justin.worthe@gmail.com>"] - -[dependencies] diff --git a/aoc18/src/main.rs b/aoc18/src/main.rs deleted file mode 100644 index 52ad7a9..0000000 --- a/aoc18/src/main.rs +++ /dev/null @@ -1,20 +0,0 @@ -fn main() { - let init: Vec<char> = ".^^..^...^..^^.^^^.^^^.^^^^^^.^.^^^^.^^.^^^^^^.^...^......^...^^^..^^^.....^^^^^^^^^....^^...^^^^..^".chars().collect(); - - let mut map = Vec::new(); - map.push(init); - - for _ in 1..400000 { - let last = map.last().unwrap().clone(); - let mut next = Vec::new(); - for i in 0..last.len() { - let left = if i == 0 { '.' } else { last[i-1] }; - let right = if i == last.len()-1 { '.' } else { last[i+1] }; - next.push(if left == right { '.' } else { '^' }); - } - map.push(next); - } - - let safe_count = map.iter().map(|row| row.iter().filter(|&&c| c=='.').count() as u32).sum::<u32>(); - println!("Safe tiles: {}", safe_count); -} |