Allow changing the multi-pass problems attributes in the web UI.

Part of #2307.

Author: meisterT

webapp/src/Controller/Jury/ProblemController.php

@@ -212,7 +212,7 @@ public function indexAction(): Response
                 $type .= ' interactive';
             }
             if ($p->isMultipassProblem()) {
-                $type .= ' multi-pass';
+                $type .= ' multi-pass (max passes: ' . $p->getMultipassLimit() . ')';
             }
             $problemdata = array_merge($problemdata, [
                 'num_contests' => ['value' => (int)($contestCounts[$p->getProbid()] ?? 0)],
@@ -498,7 +498,7 @@ public function viewAction(Request $request, SubmissionService $submissionServic
             $type .= ' interactive';
         }
         if ($problem->isMultipassProblem()) {
-            $type .= ' multi-pass';
+            $type .= ' multi-pass (max passes: ' . $problem->getMultipassLimit() . ')';
         }
         $data = [
             'problem' => $problem,

webapp/src/Form/Type/ProblemType.php

@@ -81,6 +81,15 @@ public function buildForm(FormBuilderInterface $builder, array $options): void
             'label' => 'Use run script as compare script.',
             'required' => false,
         ]);
+        $builder->add('multipassProblem', CheckboxType::class, [
+            'label' => 'Multi-pass problem',
+            'required' => false,
+        ]);
+        $builder->add('multipassLimit', IntegerType::class, [
+            'label' => 'Multi-pass limit',
+            'required' => false,
+            'help' => 'leave empty for default',
+        ]);
         $builder->add('save', SubmitType::class);
 
         // Remove clearProblemstatement field when we do not have a problem text.