diff --git a/justfile b/justfile
index a9838f5..187ddd4 100644
--- a/justfile
+++ b/justfile
@@ -3,7 +3,7 @@ _default:
     cargo run --release -- solve *
 
 year := `date +%Y`
-day := `date +%d`
+day := `nu -c 'date now | format date "%_d" | str trim'`
 
 p P in="":
     cargo run --release -- solve {{year}}:{{day}}:{{P}} {{in}}
diff --git a/years/2024/src/day_2.rs b/years/2024/src/day_2.rs
index 00430bc..7f6a4a5 100644
--- a/years/2024/src/day_2.rs
+++ b/years/2024/src/day_2.rs
@@ -3,15 +3,49 @@ use advent_core::{Day, day_stuff, ex_for_day};
 
 pub struct Day2;
 
+fn line_valid(line: &[u64]) -> bool {
+    let mut increasing: Option<bool> = None;
+    line.windows(2).all(|w| {
+        let (x, y) = (w[0], w[1]);
+        if x == y || x.abs_diff(y) > 3 {
+            false
+        } else if let Some(increasing) = increasing {
+            !((increasing && y <= x) || (!increasing && x <= y))
+        } else {
+            increasing = Some(x < y);
+            true
+        }
+    })
+}
+
 impl Day for Day2 {
 
-    day_stuff!(2, "", "");
+    day_stuff!(2, "2", "4", Vec<Vec<u64>>);
 
-    fn part_1(_input: Self::Input) -> Option<String> {
-        None
+    fn part_1(input: Self::Input) -> Option<String> {
+        Some(input.into_iter().filter(|v| line_valid(&v)).count().to_string())
     }
 
-    fn part_2(_input: Self::Input) -> Option<String> {
-        None
+    fn part_2(input: Self::Input) -> Option<String> {
+        Some(input.into_iter().filter(|line| {
+            let valid = line_valid(&line);
+            if valid {
+                true
+            } else {
+                (0..line.len()).any(|ie| { 
+                    let v = line.iter()
+                        .enumerate()
+                        .filter(|(i, _)| *i != ie)
+                        .map(|(_, e)| *e)
+                        .collect::<Vec<_>>();
+                    
+                    line_valid(&v)
+                })
+            }
+        }).count().to_string())
+    }
+    
+    fn parse_input(input: &str) -> Self::Input {
+        input.split('\n').map(|l| l.split_ascii_whitespace().map(|x| x.parse::<u64>().unwrap()).collect()).collect()
     }
 }
diff --git a/years/2024/src/examples/day_2/1.txt b/years/2024/src/examples/day_2/1.txt
index e69de29..82cd679 100644
--- a/years/2024/src/examples/day_2/1.txt
+++ b/years/2024/src/examples/day_2/1.txt
@@ -0,0 +1,6 @@
+7 6 4 2 1
+1 2 7 8 9
+9 7 6 2 1
+1 3 2 4 5
+8 6 4 4 1
+1 3 6 7 9
\ No newline at end of file
diff --git a/years/2024/src/examples/day_2/2.txt b/years/2024/src/examples/day_2/2.txt
index e69de29..82cd679 100644
--- a/years/2024/src/examples/day_2/2.txt
+++ b/years/2024/src/examples/day_2/2.txt
@@ -0,0 +1,6 @@
+7 6 4 2 1
+1 2 7 8 9
+9 7 6 2 1
+1 3 2 4 5
+8 6 4 4 1
+1 3 6 7 9
\ No newline at end of file