diff --git a/db/schema.rb b/db/schema.rb
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -9,7 +9,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20100216105730) do
+ActiveRecord::Schema.define(:version => 20100216162940) do
 
   create_table "announcements", :force => true do |t|
     t.string   "author"
@@ -46,6 +46,16 @@
     t.datetime "updated_at"
   end
 
+  create_table "contests_problems", :id => false, :force => true do |t|
+    t.integer "contest_id"
+    t.integer "problem_id"
+  end
+
+  create_table "contests_users", :id => false, :force => true do |t|
+    t.integer "contest_id"
+    t.integer "user_id"
+  end
+
   create_table "countries", :force => true do |t|
     t.string   "name"
     t.datetime "created_at"