judge: add multi-pass problem support (#1167)

packages/hydrojudge/src/judge/interface.ts

@@ -1,6 +1,7 @@
 import PQueue from 'p-queue';
 import { NormalizedSubtask } from '@hydrooj/common';
 import { Execute } from '../interface';
+import { CopyInFile } from '../sandbox';
 import { JudgeTask } from '../task';
 
 export type Context = JudgeTask & RuntimeContext;
@@ -29,3 +30,9 @@ export interface ContextSubTask {
     score: number;
     status: number;
 }
+
+export interface MultiPassContext {
+    i: number;
+    input?: CopyInFile;
+    state?: Record<string, CopyInFile>;
+}