prepare a* algorithm

Day17/Part1.js

@@ -11,10 +11,16 @@ const input = readFileSync("input.txt")
             c: +b,
             x: i,
             y: j,
-            d: 0,
-            h: 0
+            g: 0,
+            h: 0,
         })));
-console.log(input[0].slice(-1)[0]);
+const man_dist = (a, b) => Math.abs(b.x - a.x) + Math.abs(b.y - a.y);
+
+const start = input[0][0];
+const end = input.slice(-1)[0].slice(-1)[0];
+const open = [start], closed = [];
+
+console.log(end.g);
 
 const t1 = performance.now();
 console.log(`Runtime: ${t1 - t0}ms`);