修改 js 错误

template/oj/problem/problem.html

@@ -87,4 +87,7 @@
         </div>
     </div>
 </div>
+{% endblock %}
+{% block js_block %}
+    <script src="/static/js/require.js" data-main="/static/js/app/oj/problem/submit_code.js"></script>
 {% endblock %}