Fix edgecases resulting in conflict loops.

src/belt_finding/mod.rs

@@ -70,7 +70,7 @@ impl Problem {
         for (i, path) in self.path.iter().enumerate() {
             if i != without {
                 for p in path {
-                    let weight = 0.5;
+                    let weight = 1.0;
                     let x = p.0.x as usize;
                     let y = p.0.y as usize;