hydro-dev · gtn1024 · Jul 21, 2026
diff --git a/packages/common/subtask.ts b/packages/common/subtask.ts
@@ -90,6 +90,7 @@ interface ParsedSubtask {
     score?: number;
     id?: number;
     if?: number[];
+    if_score?: number[];
 }
 
 export function readSubtasksFromFiles(files: string[], config) {
@@ -162,6 +163,7 @@ export function normalizeSubtasks(
             id: id + 1,
             type: 'min',
             if: [],
+            if_score: [],
             ...s,
             score,
             time: parseTimeMS(s.time || time, !ignoreParseError) * timeRate,

diff --git a/packages/common/types.ts b/packages/common/types.ts
@@ -31,6 +31,7 @@ export interface SubtaskConfig {
     memory?: string;
     score?: number;
     if?: number[];
+    if_score?: number[];
     id?: number;
     type?: SubtaskType;
     cases?: TestCaseConfig[];

diff --git a/packages/hydrojudge/src/flow.ts b/packages/hydrojudge/src/flow.ts
@@ -1,6 +1,6 @@
 import Queue from 'p-queue';
 import {
-    JudgeResultBody, NormalizedCase, NormalizedSubtask, STATUS,
+    JudgeResultBody, NormalizedCase, NormalizedSubtask, STATUS, type SubtaskResult, type SubtaskType,
 } from '@hydrooj/common';
 import { getConfig } from './config';
 import { FormatError } from './error';
@@ -19,7 +19,7 @@ const Score = {
     min: Math.min,
 };
 
-function judgeSubtask(subtask: NormalizedSubtask, sid: string, judgeCase: Task['judgeCase']) {
+function judgeSubtask(subtask: NormalizedSubtask, sid: string, judgeCase: Task['judgeCase'], skip = false) {
     return async (ctx: Context) => {
         subtask.type ||= 'min';
         const ctxSubtask = {
@@ -33,7 +33,8 @@ function judgeSubtask(subtask: NormalizedSubtask, sid: string, judgeCase: Task['
         for (const cid in subtask.cases) {
             const runner = judgeCase(subtask.cases[cid]);
             cases.push(ctx.queue.add(async () => {
-                const res = (ctx.errored
+                const res = (skip
+                    || ctx.errored
                     || (subtask.type === 'min' && ctxSubtask.score === 0)
                     || (subtask.type === 'max' && ctxSubtask.score === subtask.score)
                     || (subtask.if || []).filter((i) => ctx.failed[i]).length)
@@ -71,13 +72,47 @@ function judgeSubtask(subtask: NormalizedSubtask, sid: string, judgeCase: Task['
         }
         ctx.total_status = Math.max(ctx.total_status, ctxSubtask.status);
         return {
-            type: ctxSubtask.subtask.type,
+            type: ctxSubtask.subtask.type as SubtaskType,
             score: ctxSubtask.score,
             status: ctxSubtask.status,
         };
     };
 }
 
+async function judgeScoreDependentSubtasks(ctx: Context, task: Task) {
+    const subtasks: Record<string, NormalizedSubtask> = {};
+    for (const [key, value] of Object.entries(ctx.config.subtasks)) {
+        subtasks[value.id?.toString() || key] = value;
+    }
+    const pending = new Set(Object.keys(subtasks));
+    const infos: Record<string, SubtaskResult> = {};
+    while (pending.size) {
+        const ready = [...pending].filter((sid) => {
+            const subtask = subtasks[sid];
+            return [...(subtask.if || []), ...(subtask.if_score || [])]
+                .every((id) => !subtasks[id] || !pending.has(id.toString()));
+        });
+        if (!ready.length) throw new FormatError('Circular dependency between subtasks.');
+        for (const sid of ready) pending.delete(sid);
+        // eslint-disable-next-line no-await-in-loop
+        await Promise.all(ready.map(async (sid) => {
+            const subtask = subtasks[sid];
+            const accepted = (subtask.if || []).every((id) => (
+                !subtasks[id] || (infos[id] && infos[id].status <= STATUS.STATUS_ACCEPTED)
+            ));
+            const scored = (subtask.if_score || []).every((id) => infos[id]?.score > 0);
+            if (!accepted || !scored) {
+                ctx.failed[sid] = true;
+                await judgeSubtask(subtask, sid, task.judgeCase, true)(ctx);
+                return;
+            }
+            infos[sid] = await judgeSubtask(subtask, sid, task.judgeCase)(ctx);
+        }));
+    }
+    for (const info of Object.values(infos)) ctx.total_score += info.score;
+    return infos;
+}
+
 export const runFlow = async (ctx: Context, task: Task) => {
     if (!ctx.config.subtasks.length) throw new FormatError('Problem data not found.');
     ctx.next({ status: STATUS.STATUS_COMPILING });
@@ -111,21 +146,24 @@ export const runFlow = async (ctx: Context, task: Task) => {
             ctx.end({ nop: true });
         }
     } else {
-        const infos = {};
-        await Promise.all(Object.entries(ctx.config.subtasks).map(async ([key, value]) => {
-            const sid = value.id?.toString() || key;
-            infos[sid] = await judgeSubtask(value, sid, task.judgeCase)(ctx);
-        }));
-        for (const [key, value] of Object.entries(ctx.config.subtasks)) {
-            let effective = true;
-            const sid = value.id?.toString() || key;
-            for (const required of value.if || []) {
-                if (ctx.failed[required.toString()]) effective = false;
-            }
-            if (effective) ctx.total_score += infos[sid].score;
-            else {
-                ctx.failed[sid] = true;
-                delete infos[sid];
+        const hasScoreDependencies = ctx.config.subtasks.some((i) => i.if_score?.length);
+        const infos = hasScoreDependencies ? await judgeScoreDependentSubtasks(ctx, task) : {};
+        if (!hasScoreDependencies) {
+            await Promise.all(Object.entries(ctx.config.subtasks).map(async ([key, value]) => {
+                const sid = value.id?.toString() || key;
+                infos[sid] = await judgeSubtask(value, sid, task.judgeCase)(ctx);
+            }));
+            for (const [key, value] of Object.entries(ctx.config.subtasks)) {
+                let effective = true;
+                const sid = value.id?.toString() || key;
+                for (const required of value.if || []) {
+                    if (ctx.failed[required.toString()]) effective = false;
+                }
+                if (effective) ctx.total_score += infos[sid].score;
+                else {
+                    ctx.failed[sid] = true;
+                    delete infos[sid];
+                }
             }
         }
         ctx.end({

diff --git a/packages/hydrojudge/src/judge/run.ts b/packages/hydrojudge/src/judge/run.ts
@@ -60,6 +60,7 @@ export const judge = async (ctx: Context) => {
         time: ctx.config.time,
         memory: ctx.config.memory,
         if: [],
+        if_score: [],
         cases: ctx.input.map((i, idx) => ({
             id: idx + 1,
             time: ctx.config.time,

diff --git a/packages/ui-default/components/monaco/schema/problemconfig.ts b/packages/ui-default/components/monaco/schema/problemconfig.ts
@@ -32,6 +32,7 @@ const problemConfigSchema: JSONSchema7 = {
         score: { $ref: '#/definitions/score', description: 'score' },
         cases: { $ref: '#/definitions/cases' },
         if: { type: 'array', items: { type: 'integer' } },
+        if_score: { type: 'array', items: { type: 'integer' } },
         id: { type: 'integer' },
       },
       required: ['score'],

diff --git a/packages/ui-default/components/problemconfig/ProblemConfigEditor.tsx b/packages/ui-default/components/problemconfig/ProblemConfigEditor.tsx
@@ -35,7 +35,7 @@ const configKey = [
 ];
 
 const subtasksKey = [
-  'time', 'memory', 'score', 'if', 'id',
+  'time', 'memory', 'score', 'if', 'if_score', 'id',
   'type', 'cases',
 ];
 

diff --git a/packages/ui-default/components/problemconfig/reducer/config.ts b/packages/ui-default/components/problemconfig/reducer/config.ts
@@ -127,6 +127,10 @@ export default function reducer(state = {
       if (action.payload.memory) subtask.memory = action.payload.memory;
       if (action.payload.score) subtask.score = +action.payload.score || 0;
       if (action.payload.if) subtask.if = action.payload.if;
+      if ('if_score' in action.payload) {
+        if (action.payload.if_score?.length) subtask.if_score = action.payload.if_score;
+        else delete subtask.if_score;
+      }
       if (action.payload.type) subtask.type = action.payload.type;
       if (!subtask.time) delete subtask.time;
       if (!subtask.memory) delete subtask.memory;

diff --git a/packages/ui-default/components/problemconfig/tree/SubtaskSettings.tsx b/packages/ui-default/components/problemconfig/tree/SubtaskSettings.tsx
@@ -14,6 +14,10 @@ interface SubtaskSettingsProps {
   memory: string;
 }
 
+function parseDependencies(value: string) {
+  return value.split(',').map((i) => i.trim()).filter((i) => +i).map((i) => +i);
+}
+
 export function SubtaskSettings(props: SubtaskSettingsProps) {
   const [open, setOpen] = React.useState(false);
   const [depsOpen, setDepsOpen] = React.useState(false);
@@ -22,12 +26,14 @@ export function SubtaskSettings(props: SubtaskSettingsProps) {
   const time = useSelector((state: RootState) => state.config.subtasks.find((i) => i.id === props.subtaskId).time);
   const memory = useSelector((state: RootState) => state.config.subtasks.find((i) => i.id === props.subtaskId).memory);
   const deps = useSelector((state: RootState) => state.config.subtasks.find((i) => i.id === props.subtaskId).if || [], isEqual);
+  const scoreDeps = useSelector((state: RootState) => state.config.subtasks.find((i) => i.id === props.subtaskId).if_score || [], isEqual);
   const type = useSelector((state: RootState) => state.config.subtasks.find((i) => i.id === props.subtaskId).type || 'min');
 
   const [ctime, setTime] = React.useState(time);
   const [cmemory, setMemory] = React.useState(memory);
   const [cscore, setScore] = React.useState(score);
   const [cdeps, setDeps] = React.useState(deps.join(', '));
+  const [cscoreDeps, setScoreDeps] = React.useState(scoreDeps.join(', '));
   const [ctype, setType] = React.useState(type);
 
   const dispatch = useDispatch();
@@ -49,7 +55,8 @@ export function SubtaskSettings(props: SubtaskSettingsProps) {
         time: ctime,
         memory: cmemory,
         score: cscore,
-        if: cdeps.split(',').map((i) => i.trim()).filter((i) => +i).map((i) => +i),
+        if: parseDependencies(cdeps),
+        if_score: parseDependencies(cscoreDeps),
       },
     });
     setOpen(false);
@@ -88,13 +95,29 @@ export function SubtaskSettings(props: SubtaskSettingsProps) {
       </div>
     </Modal>
     <Modal opened={depsOpen} onClose={() => setDepsOpen(false)} title={i18n('Set dependencies')}>
-      <CustomSelectAutoComplete
-        data={subtaskIds.map((i) => ({ _id: i, name: `${i18n('Subtask {0}', i)}` }))}
-        setSelectItems={cdeps.split(',').map((i) => i.trim()).filter((i) => +i).map((i) => +i)}
-        onChange={(items) => setDeps(items)}
-        placeholder="dependencies"
-        multi
-      />
+      <div style={{ marginBottom: 16 }}>
+        <Text fw={600} style={{ marginBottom: 4 }}>{i18n('Dependencies')}</Text>
+        <CustomSelectAutoComplete
+          data={subtaskIds.map((i) => ({ _id: i.toString(), name: `${i18n('Subtask {0}', i)}` }))}
+          selectedKeys={parseDependencies(cdeps).map((i) => i.toString())}
+          onChange={(items) => setDeps(items)}
+          placeholder={i18n('Dependencies')}
+          multi
+        />
+      </div>
+      <div>
+        <Text fw={600} style={{ marginBottom: 4 }}>{i18n('Positive-score dependencies')}</Text>
+        <Text c="dimmed" size="sm" style={{ marginBottom: 4 }}>
+          {i18n('The current subtask is judged only when all selected subtasks have a score greater than 0.')}
+        </Text>
+        <CustomSelectAutoComplete
+          data={subtaskIds.map((i) => ({ _id: i.toString(), name: `${i18n('Subtask {0}', i)}` }))}
+          selectedKeys={parseDependencies(cscoreDeps).map((i) => i.toString())}
+          onChange={(items) => setScoreDeps(items)}
+          placeholder={i18n('Positive-score dependencies')}
+          multi
+        />
+      </div>
       <div style={{ display: 'flex', justifyContent: 'flex-end', marginTop: 12 }}>
         <Button color="blue" onClick={onConfirm}>{i18n('Save')}</Button>
       </div>
@@ -111,6 +134,10 @@ export function SubtaskSettings(props: SubtaskSettingsProps) {
       <Text><i className="icon icon-diagram-tree" /></Text>
       <Text>{i18n('Dependencies')}: {deps.length ? deps.join(', ') : i18n('(None)')}</Text>
     </div>
+    <div style={{ paddingLeft: 22, display: 'flex', alignItems: 'center', cursor: 'pointer', gap: 8 }} onClick={() => setDepsOpen(true)}>
+      <Text><i className="icon icon-diagram-tree" /></Text>
+      <Text>{i18n('Positive-score dependencies')}: {scoreDeps.length ? scoreDeps.join(', ') : i18n('(None)')}</Text>
+    </div>
     <div style={{ paddingLeft: 22, display: 'flex', alignItems: 'center', gap: 8 }}>
       <i className="icon icon-asterisk" />
       <Text>{i18n('Scoring method')}</Text>

diff --git a/packages/ui-default/locales/zh.yaml b/packages/ui-default/locales/zh.yaml
@@ -700,6 +700,7 @@ Please select at least one user to perform this operation.: 请选择至少一
 Please set the balloon color for each problem first.: 请先为每道题设置气球颜色。
 Please wait until contest host unfreeze the scoreboard.: 请等待比赛主办方解除封榜。
 Polyhedron supports managing problem version history, testing solutions, checking time limits, composing contest statements, cooperation and much more.: Polyhedron 支持题目版本管理，代码测试，时限检验，制作比赛题面，多人协作等等功能。
+Positive-score dependencies: 正分依赖
 Preference Settings: 偏好设置
 preferredPrefix_hint: 此选项用于重排题号。例如，若题目包中所给的题号分别是 P1001, P1002, P1003，而此选项填写了 T，则导入后三道题的题号分别为 T1001, T1002 和 T1003。
 Preparing Upload...: 准备上传...
@@ -950,6 +951,7 @@ Text: 文本
 The 'default' role applies to ALL REGISTERED USER.: default 角色作用于<b>所有已注册用户</b>
 The contest is a flexible time contest. You need to complete the contest within a specified time after you attended.: 本场比赛采用灵活时间模式，你需要在参加后的指定时间内完成比赛。
 The contest is ended. New submissions will be treated as correction submissions and will not be counted in the contest.: 比赛已经结束。新提交将被视为补题提交，不计入比赛成绩。
+The current subtask is judged only when all selected subtasks have a score greater than 0.: 仅当所有选中的子任务得分均大于 0 时，才评测当前子任务。
 The group to join when user joining the domain.: 加入域时自动加入的小组。
 The homework's deadline is due but in extension. You can still submit for this problem but your score will be penalized.: 作业已超过截止时间，但仍在延期时间内。您递交题目将无法获得全部分数。
 The invitation code to enter to successfully join the domain. You can only use letters and numbers in the code and it should not be longer than 64 characters.: 加入此域的邀请码。您只能使用字母和数字，并且不能长于 64 个字符。