Added new contribution (#1981)

Co-authored-by: Skyler Zhang <zhang.skyler@outlook.com>

Author: ch00ooch00oo

content/videos/challenges/68-breadth-first-search/showcase/contribution-1778815389.json

@@ -0,0 +1,9 @@
+{
+  "title": "Weighted BFS lightning",
+  "author": {
+    "name": "Skyler Zhang"
+  },
+  "url": "https://github.com/greendoubledecker/Lightning",
+  "submittedOn": "2026-05-15T03:23:09.855Z",
+  "socialPermission": true
+}