diff --git a/packages/hydrooj/src/handler/contest.ts b/packages/hydrooj/src/handler/contest.ts
index 73b8c1fd..aaff7eb7 100644
--- a/packages/hydrooj/src/handler/contest.ts
+++ b/packages/hydrooj/src/handler/contest.ts
@@ -224,8 +224,10 @@ export class ContestDetailHandler extends Handler {
     @param('code', Types.String, true)
     async postAttend(domainId: string, tid: ObjectID, code = '') {
         if (contest.isDone(this.tdoc)) throw new ContestNotLiveError(tid);
-        if (this.tdoc._code && code !== this.tdoc._code) throw new InvalidTokenError('Contest Invitation', code);
+        if (this.tdoc._code && code !== this.tdoc._code && !this.tdoc.uninvite) throw new InvalidTokenError('Contest Invitation', code);
         await contest.attend(domainId, tid, this.user._id);
+        if (this.tdoc.unrankUser.includes(this.user._id)
+            || (this.tdoc._code && code !== this.tdoc._code && this.tdoc.uninvite)) contest.setStatus(domainId, tid, this.user._id, { unrank: true });
         this.back();
     }
 }
@@ -412,11 +414,14 @@ export class ContestEditHandler extends Handler {
     @param('assign', Types.CommaSeperatedArray, true)
     @param('lock', Types.UnsignedInt, true)
     @param('contestDuration', Types.Float, true)
+    @param('maintainer', Types.NumericArray, true)
+    @param('uninvite', Types.Boolean, true)
+    @param('allowViewCode', Types.Boolean, true)
     async postUpdate(
         domainId: string, tid: ObjectID, beginAtDate: string, beginAtTime: string, duration: number,
         title: string, content: string, rule: string, _pids: string, rated = false,
         _code = '', autoHide = false, assign: string[] = null, lock: number = null,
-        contestDuration: number = null,
+        contestDuration: number = null, maintainer: number[] = null, uninvite = false, allowViewCode = true,
     ) {
         if (autoHide) this.checkPerm(PERM.PERM_EDIT_PROBLEM);
         const pids = _pids.replace(/，/g, ',').split(',').map((i) => +i).filter((i) => i);
@@ -457,7 +462,7 @@ export class ContestEditHandler extends Handler {
             });
         }
         await contest.edit(domainId, tid, {
-            assign, _code, autoHide, lockAt,
+            assign, _code, autoHide, lockAt, maintainer, uninvite, allowViewCode,
         });
         this.response.body = { tid };
         this.response.redirect = this.url('contest_detail', { tid });
diff --git a/packages/ui-default/templates/contest_detail.html b/packages/ui-default/templates/contest_detail.html
index 46ed8036..ce5e1bce 100644
--- a/packages/ui-default/templates/contest_detail.html
+++ b/packages/ui-default/templates/contest_detail.html
@@ -35,6 +35,11 @@
           <p>{{ _('The contest is a flexible time contest. You need to complete the contest within a specified time after you attended.') }}</p>
         </blockquote>
       {% endif %}
+      {% if tdoc.code and tdoc.uninvite %}
+        <blockquote class="note">
+          <p>{{ _('The contest is a invitational contest. However it allow users attend contest without the invitation code. Those users will not be ranked.') }}</p>
+        </blockquote>
+      {% endif %}
       </div>
     </div>
   </div>
diff --git a/packages/ui-default/templates/contest_edit.html b/packages/ui-default/templates/contest_edit.html
index 276232ef..e41b168f 100644
--- a/packages/ui-default/templates/contest_edit.html
+++ b/packages/ui-default/templates/contest_edit.html
@@ -73,7 +73,7 @@
           }) }}
           {{ form.form_textarea({
             columns:null,
-            label:'Content',
+            label:'Description',
             name:'content',
             value:tdoc['content']|default(''),
             markdown:true
@@ -117,7 +117,7 @@
             </div>
             <div style="display: none" class="authorize-settings authorize--invite">
             {{ form.form_text({
-              columns:9,
+              columns:6,
               label:'Invitation Code',
               name:'code',
               placeholder:_('(leave blank if none)'),
@@ -125,19 +125,7 @@
               disabled:true,
               row:false
             }) }}
-            </div>
-          </div>
-          <div class="row">
-            {{ form.form_text({
-              columns:9,
-              label:'UnRank User',
-              name:'unrankUser',
-              help_text:_('User who will not show rank in scoreboard'),
-              value:tdoc.unrankUser|default(''),
-              row:false
-            }) }}
-            <div style="display: none" class="authorize-settings authorize--invite">
-            {{ form.form_checkbox({
+              {{ form.form_checkbox({
               columns:3,
               label:'Allow join by unrank',
               name:'uninvite',