judge: fix hosts dispose

packages/hydrojudge/src/daemon.ts

@@ -29,13 +29,13 @@ declare global {
     }
 }
 global.onDestroy ||= [];
-global.hosts ||= [];
+global.hosts ||= {};
 let exit = false;
 
 const terminate = async () => {
     log.info('正在保存数据');
     try {
-        await Promise.all(global.hosts.map((f) => f.dispose?.()));
+        await Promise.all(Object.values(global.hosts).map((f) => f.dispose?.()));
         process.exit(1);
     } catch (e) {
         if (exit) process.exit(1);

packages/hydrojudge/src/judge/objective.ts

@@ -51,7 +51,11 @@ export async function judge({
                 },
             });
         };
-        const usrAns = (answers[key]?.toString() || '').trim();
+        if (!answers[key]) {
+            report(STATUS.STATUS_WRONG_ANSWER, 0, 'No answer');
+            continue;
+        }
+        const usrAns = answers[key].toString().trim();
         if (ansInfo instanceof Array) {
             const fullScore = (+ansInfo[1]) || 0;
             const stdAns = ansInfo[0];