fix problem

app.py

@@ -15,6 +15,7 @@ with open("problems.json") as f:
 
 random_idxs = list(range(len(problems)))
 random.shuffle(random_idxs)
+problems = [problems[idx] for idx in random_idxs]
 
 with open("all_outputs.json") as f:
     all_outputs = json.load(f)