From 97426f0895b95cb911c4afe664e030bf8932b64a Mon Sep 17 00:00:00 2001
From: yuetsh <517252939@qq.com>
Date: Fri, 9 Oct 2026 12:57:14 +0800
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排序下拉固定三项：最新创建（默认）/ 按题号 / 最多人做对。

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---
 apps/api/src/routes/problem.ts   |  6 +++---
 apps/web/src/oj/problem/list.vue | 15 ++++++---------
 packages/contract/src/problem.ts |  2 +-
 3 files changed, 10 insertions(+), 13 deletions(-)

diff --git a/apps/api/src/routes/problem.ts b/apps/api/src/routes/problem.ts
index 974477a..5425175 100644
--- a/apps/api/src/routes/problem.ts
+++ b/apps/api/src/routes/problem.ts
@@ -169,10 +169,10 @@ problemRoutes.get("/problems", optionalAuth, async (c) => {
     filters.push(notInArray(schema.problem.id, [...states.solved]))
 
   const where = and(...filters)
-  // 默认：选了知识点按题号（同一系列的题挨在一起），全部题目按最新创建。
-  // 旧的排序值（最多提交、画流程图……）落到默认 —— 类型已经拆成了单独的筛选
+  // 默认按最新创建（选了知识点也一样）。旧的排序值（最多提交、画流程图……）落到默认 ——
+  // 类型已经拆成了单独的筛选
   const sort = problemListSortSchema.safeParse(c.req.query("sort") ?? "").data ?? ""
-  const effective = sort || (tag ? "id" : "new")
+  const effective = sort || "new"
   const allCounts = effective === "popular" ? await problemUserCounts() : null
   const popularity = allCounts
     ? sql`case ${schema.problem.id} ${sql.join(
diff --git a/apps/web/src/oj/problem/list.vue b/apps/web/src/oj/problem/list.vue
index ca5fe89..3863f15 100644
--- a/apps/web/src/oj/problem/list.vue
+++ b/apps/web/src/oj/problem/list.vue
@@ -179,15 +179,12 @@ const countText = computed(() => {
   return { kind: "total" as const, n: total.value }
 })
 
-// ---- 排序：默认随知识点走（选了按题号，全部按最新创建），下拉里显示的是实际生效的那个 ----
-const sortOptions = computed(() => {
-  const byId = !!query.tag
-  return [
-    { label: byId ? "按题号" : "最新创建", value: "" },
-    { label: byId ? "最新创建" : "按题号", value: byId ? "new" : "id" },
-    { label: "最多人做对", value: "popular" },
-  ]
-})
+// ---- 排序：默认按最新创建（选了知识点也一样） ----
+const sortOptions = [
+  { label: "最新创建", value: "" },
+  { label: "按题号", value: "id" },
+  { label: "最多人做对", value: "popular" },
+]
 
 // ---- 出题者 ----
 const authorOptions = ref<{ label: string; value: string }[]>([])
diff --git a/packages/contract/src/problem.ts b/packages/contract/src/problem.ts
index b07ad38..34af3f0 100644
--- a/packages/contract/src/problem.ts
+++ b/packages/contract/src/problem.ts
@@ -439,7 +439,7 @@ export const problemListSchema = paginatedSchema(problemListItemSchema)
 /** 题目列表「全部类型」下拉：有参考图 / 画流程图 / 语法要求 */
 export const problemTypeFilterSchema = z.enum(["reference", "flowchart", "ast"])
 
-/** 题目列表的排序。空串是默认：选了知识点按题号，全部题目按最新创建 */
+/** 题目列表的排序。空串是默认：按最新创建 */
 export const problemListSortSchema = z.enum(["", "id", "new", "popular"])
 
 /**