From 1274eee16b2985ff463dd53e9a1e7cd86709ba6d Mon Sep 17 00:00:00 2001
From: Tom-the-Bomb <thello522@gmail.com>
Date: Fri, 5 Jan 2024 13:56:05 -0500
Subject: [PATCH] fix

---
 Cargo.lock       | 12 ++++++------
 src/bin/day24.rs | 45 +++++++++++++++++++++++++--------------------
 2 files changed, 31 insertions(+), 26 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index e757392..090e450 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -340,9 +340,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.74"
+version = "1.0.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2de98502f212cfcea8d0bb305bd0f49d7ebdd75b64ba0a68f937d888f4e0d6db"
+checksum = "907a61bd0f64c2f29cd1cf1dc34d05176426a3f504a78010f08416ddb7b13708"
 dependencies = [
  "unicode-ident",
 ]
@@ -477,7 +477,7 @@ checksum = "a3385e45322e8f9931410f01b3031ec534c3947d0e94c18049af4d9f9907d4e0"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.46",
+ "syn 2.0.48",
 ]
 
 [[package]]
@@ -506,9 +506,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.46"
+version = "2.0.48"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "89456b690ff72fddcecf231caedbe615c59480c93358a93dfae7fc29e3ebbf0e"
+checksum = "0f3531638e407dfc0814761abb7c00a5b54992b849452a0646b7f65c9f770f3f"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -566,5 +566,5 @@ checksum = "9ce1b18ccd8e73a9321186f97e46f9f04b778851177567b1975109d26a08d2a6"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.46",
+ "syn 2.0.48",
 ]
diff --git a/src/bin/day24.rs b/src/bin/day24.rs
index 19e4d61..163438a 100644
--- a/src/bin/day24.rs
+++ b/src/bin/day24.rs
@@ -27,16 +27,16 @@ struct Hailstone {
     z_vel: f64,
 }
 
-type BF1024 = BigFloat<ConstCtx<1024>>;
+type BF128 = BigFloat<ConstCtx<128>>;
 
 #[derive(Debug, Clone, PartialEq)]
 struct BFHailstone {
-    x_pos: BF1024,
-    y_pos: BF1024,
-    z_pos: BF1024,
-    x_vel: BF1024,
-    y_vel: BF1024,
-    z_vel: BF1024,
+    x_pos: BF128,
+    y_pos: BF128,
+    z_pos: BF128,
+    x_vel: BF128,
+    y_vel: BF128,
+    z_vel: BF128,
 }
 
 macro_rules! parse_part {
@@ -79,7 +79,7 @@ macro_rules! impl_from_str {
 }
 
 impl_from_str!(Hailstone, f64);
-impl_from_str!(BFHailstone, BF1024);
+impl_from_str!(BFHailstone, BF128);
 
 #[inline]
 fn float_cmp(a: f64, b: f64) -> bool {
@@ -170,6 +170,10 @@ impl Day24 {
             .count()
     }
 
+    /// # Panics
+    ///
+    /// If failed to invert the `a` matrix
+    /// or failed to parse input lines
     pub fn part_two<T: Display>(&self, inp: T) -> usize {
         let inp = inp.to_string();
         let mut hailstones = inp
@@ -189,27 +193,27 @@ impl Day24 {
 
         let a = Matrix6::new(
             hs2.y_vel.clone() - hs1.y_vel.clone(),
-            hs1.x_vel.clone() - hs2.x_vel.clone(), BF1024::zero(),
+            hs1.x_vel.clone() - hs2.x_vel.clone(), BF128::zero(),
             hs1.y_pos.clone() - hs2.y_pos.clone(),
-            hs2.x_pos.clone() - hs1.x_pos.clone(), BF1024::zero(),
+            hs2.x_pos.clone() - hs1.x_pos.clone(), BF128::zero(),
             hs3.y_vel.clone() - hs1.y_vel.clone(),
-            hs1.x_vel.clone() - hs3.x_vel.clone(), BF1024::zero(),
+            hs1.x_vel.clone() - hs3.x_vel.clone(), BF128::zero(),
             hs1.y_pos.clone() - hs3.y_pos.clone(),
-            hs3.x_pos.clone() - hs1.x_pos.clone(), BF1024::zero(),
-            hs2.z_vel.clone() - hs1.z_vel.clone(), BF1024::zero(),
+            hs3.x_pos.clone() - hs1.x_pos.clone(), BF128::zero(),
+            hs2.z_vel.clone() - hs1.z_vel.clone(), BF128::zero(),
             hs1.x_vel.clone() - hs2.x_vel.clone(),
-            hs1.z_pos.clone() - hs2.z_pos.clone(), BF1024::zero(),
+            hs1.z_pos.clone() - hs2.z_pos.clone(), BF128::zero(),
             hs2.x_pos.clone() - hs1.x_pos.clone(),
-            hs3.z_vel.clone() - hs1.z_vel.clone(), BF1024::zero(),
+            hs3.z_vel.clone() - hs1.z_vel.clone(), BF128::zero(),
             hs1.x_vel.clone() - hs3.x_vel.clone(),
-            hs1.z_pos.clone() - hs3.z_pos.clone(), BF1024::zero(),
+            hs1.z_pos.clone() - hs3.z_pos.clone(), BF128::zero(),
             hs3.x_pos.clone() - hs1.x_pos.clone(),
-            BF1024::zero(), hs2.z_vel.clone() - hs1.z_vel.clone(),
-            hs1.y_vel.clone() - hs2.y_vel.clone(), BF1024::zero(),
+            BF128::zero(), hs2.z_vel.clone() - hs1.z_vel.clone(),
+            hs1.y_vel.clone() - hs2.y_vel.clone(), BF128::zero(),
             hs1.z_pos.clone() - hs2.z_pos.clone(),
             hs2.y_pos.clone() - hs1.y_pos.clone(),
-            BF1024::zero(), hs3.z_vel.clone() - hs1.z_vel.clone(),
-            hs1.y_vel.clone() - hs3.y_vel.clone(), BF1024::zero(),
+            BF128::zero(), hs3.z_vel.clone() - hs1.z_vel.clone(),
+            hs1.y_vel.clone() - hs3.y_vel.clone(), BF128::zero(),
             hs1.z_pos.clone() - hs3.z_pos.clone(),
             hs3.y_pos.clone() - hs1.y_pos.clone(),
         );
@@ -234,6 +238,7 @@ impl Day24 {
             - (hs1.y_pos * hs1.z_vel - hs3.y_pos * hs3.z_vel),
         );
 
+        #[allow(clippy::cast_sign_loss, clippy::cast_possible_truncation)]
         a
             .try_inverse()
             .map(|a_inverse| {