config.json in trackler-2.0.8.13

- old
+ new

@@ -132,17 +132,25 @@
         "Algorithms",
         "Mathematics"
       ]
     },
     {
-      "difficulty": 1,
+      "difficulty": 5,
       "slug": "secret-handshake",
-      "topics": []
+      "topics": [
+        "Bitwise operations",
+        "Arrays",
+        "Integers"
+      ]
     },
     {
-      "difficulty": 1,
+      "difficulty": 4,
       "slug": "house",
-      "topics": []
+      "topics": [
+        "Strings",
+        "Text formatting",
+        "Recursion"
+      ]
     },
     {
       "difficulty": 1,
       "slug": "pascals-triangle",
       "topics": []