Optimize lerp creation

Now it uses Rc instead of Box, reducing the space and time complexity
from O(2^n) to O(n^2).

1 files changed, 2 insertions, 2 deletions

diff --git a/src/lib.rs b/src/lib.rs
index 6f26672..d6a1374 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -11,7 +11,7 @@ pub struct Bezier {
     pub px: Poly,
     pub py: Poly,
     pub dpx: Poly,
-    pub dpy: Poly
+    pub dpy: Poly,
 }
 
 impl Bezier {
@@ -47,7 +47,7 @@ impl Bezier {
         self.degree -= 1;
     }
 
-    pub fn show_x(&self) -> String{
+    pub fn show_x(&self) -> String {
         let mut s = String::new();
         for i in 0..self.degree {
             s.push_str(&self.vx[i].to_string());