AtCoder-NoviSteps · KATO-Hiro · Jul 13, 2025 · Jul 13, 2025 · Jul 13, 2025 · Jul 13, 2025
diff --git a/prisma/tasks.ts b/prisma/tasks.ts
@@ -4820,6 +4820,56 @@ export const tasks = [
     title: 'A01. The First Problem',
     grade: 'Q10',
   },
+  {
+    id: 'joi2025_yo1c_d',
+    contest_id: 'joi2025yo1c',
+    problem_index: 'D',
+    name: '周期文字列 (Cycle String)',
+    title: 'D. 周期文字列 (Cycle String)',
+  },
+  {
+    id: 'joi2025_yo1c_c',
+    contest_id: 'joi2025yo1c',
+    problem_index: 'C',
+    name: 'いずれか片方 (Either, but Not Both)',
+    title: 'C. いずれか片方 (Either, but Not Both)',
+  },
+  {
+    id: 'joi2025_yo1c_b',
+    contest_id: 'joi2025yo1c',
+    problem_index: 'B',
+    name: 'ブラックジャック (Blackjack)',
+    title: 'B. ブラックジャック (Blackjack)',
+  },
+  {
+    id: 'joi2025_yo1c_a',
+    contest_id: 'joi2025yo1c',
+    problem_index: 'A',
+    name: '所持金 (Money On Me)',
+    title: 'A. 所持金 (Money On Me)',
+  },
+  {
+    id: 'joi2025_yo1b_d',
+    contest_id: 'joi2025yo1b',
+    problem_index: 'D',
+    name: '三角足し算 (Triangle Addition)',
+    title: 'D. 三角足し算 (Triangle Addition)',
+  },
+  {
+    id: 'joi2025_yo1b_c',
+    contest_id: 'joi2025yo1b',
+    problem_index: 'C',
+    name: 'じゃんけん (Rock-Scissors-Paper)',
+    title: 'C. じゃんけん (Rock-Scissors-Paper)',
+  },
+  {
+    id: 'joi2025_yo1b_b',
+    contest_id: 'joi2025yo1b',
+    problem_index: 'B',
+    name: '鉄道旅行 3 (Railway Trip 3)',
+    title: 'B. 鉄道旅行 3 (Railway Trip 3)',
+    grade: 'Q8',
+  },
   {
     id: 'joi2025_yo1b_a',
     contest_id: 'joi2025yo1b',
@@ -4828,6 +4878,22 @@ export const tasks = [
     title: 'A. 徒競走 (Footrace)',
     grade: 'Q9',
   },
+  {
+    id: 'joi2025_yo1a_d',
+    contest_id: 'joi2025yo1a',
+    problem_index: 'D',
+    name: 'どら焼き (Dorayaki)',
+    title: 'D. どら焼き (Dorayaki)',
+    grade: 'Q7',
+  },
+  {
+    id: 'joi2025_yo1a_c',
+    contest_id: 'joi2025yo1a',
+    problem_index: 'C',
+    name: 'OIJ (OIJ)',
+    title: 'C. OIJ (OIJ)',
+    grade: 'Q7',
+  },
   {
     id: 'joi2025_yo1a_b',
     contest_id: 'joi2025yo1a',
@@ -4916,6 +4982,38 @@ export const tasks = [
     title: 'A. 立方体 (Cube)',
     grade: 'Q10',
   },
+  {
+    id: 'joi2022_yo1a_d',
+    contest_id: 'joi2022yo1a',
+    problem_index: 'D',
+    name: '箱と鍵 (Boxes and Keys)',
+    title: 'D. 箱と鍵 (Boxes and Keys)',
+    grade: 'Q6',
+  },
+  {
+    id: 'joi2022_yo1a_c',
+    contest_id: 'joi2022yo1a',
+    problem_index: 'C',
+    name: '複雑な文字列 (Complex String)',
+    title: 'C. 複雑な文字列 (Complex String)',
+    grade: 'Q7',
+  },
+  {
+    id: 'joi2022_yo1a_b',
+    contest_id: 'joi2022yo1a',
+    problem_index: 'B',
+    name: '移動 (Moving)',
+    title: 'B. 移動 (Moving)',
+    grade: 'Q8',
+  },
+  {
+    id: 'joi2022_yo1a_a',
+    contest_id: 'joi2022yo1a',
+    problem_index: 'A',
+    name: '余り (Remainder)',
+    title: 'A. 余り (Remainder)',
+    grade: 'Q9',
+  },
   {
     id: 'joi2021_yo1b_a',
     contest_id: 'joi2021yo1b',
@@ -4932,6 +5030,102 @@ export const tasks = [
     title: 'A. 金平糖 (Konpeito)',
     grade: 'Q8',
   },
+  {
+    id: 'joi2021_yo1a_c',
+    contest_id: 'joi2021yo1a',
+    problem_index: 'C',
+    name: '共通要素 (Common Elements)',
+    title: 'C. 共通要素 (Common Elements)',
+    grade: 'Q6',
+  },
+  {
+    id: 'joi2021_yo1a_b',
+    contest_id: 'joi2021yo1a',
+    problem_index: 'B',
+    name: 'JOI ソート (JOI Sort)',
+    title: 'B. JOI ソート (JOI Sort)',
+    grade: 'Q7',
+  },
+  {
+    id: 'joi2021_yo1a_a',
+    contest_id: 'joi2021yo1a',
+    problem_index: 'A',
+    name: '2 番目に大きい整数 (The Second Largest Integer)',
+    title: 'A. 2 番目に大きい整数 (The Second Largest Integer)',
+    grade: 'Q8',
+  },
+  {
+    id: 'joi2020_yo1c_c',
+    contest_id: 'joi2020yo1c',
+    problem_index: 'C',
+    name: '最長昇順連続部分列 (Longest Ascending Contiguous Subsequence)',
+    title: 'C. 最長昇順連続部分列 (Longest Ascending Contiguous Subsequence)',
+    grade: 'Q6',
+  },
+  {
+    id: 'joi2020_yo1c_b',
+    contest_id: 'joi2020yo1c',
+    problem_index: 'B',
+    name: 'キャピタリゼーション (Capitalization)',
+    title: 'B. キャピタリゼーション (Capitalization)',
+    grade: 'Q7',
+  },
+  {
+    id: 'joi2020_yo1c_a',
+    contest_id: 'joi2020yo1c',
+    problem_index: 'A',
+    name: 'X に最も近い値 (The Nearest Value)',
+    title: 'A. X に最も近い値 (The Nearest Value)',
+    grade: 'Q7',
+  },
+  {
+    id: 'joi2020_yo1b_c',
+    contest_id: 'joi2020yo1b',
+    problem_index: 'C',
+    name: '最頻値 (Mode)',
+    title: 'C. 最頻値 (Mode)',
+    grade: 'Q6',
+  },
+  {
+    id: 'joi2020_yo1b_b',
+    contest_id: 'joi2020yo1b',
+    problem_index: 'B',
+    name: '文字列の反転 (Inversion of a String)',
+    title: 'B. 文字列の反転 (Inversion of a String)',
+    grade: 'Q7',
+  },
+  {
+    id: 'joi2020_yo1b_a',
+    contest_id: 'joi2020yo1b',
+    problem_index: 'A',
+    name: '試験 (Exam)',
+    title: 'A. 試験 (Exam)',
+    grade: 'Q8',
+  },
+  {
+    id: 'joi2020_yo1a_c',
+    contest_id: 'joi2020yo1a',
+    problem_index: 'C',
+    name: 'マージ (Merge)',
+    title: 'C. マージ (Merge)',
+    grade: 'Q5',
+  },
+  {
+    id: 'joi2020_yo1a_b',
+    contest_id: 'joi2020yo1a',
+    problem_index: 'B',
+    name: '母音を数える (Counting Vowels)',
+    title: 'B. 母音を数える (Counting Vowels)',
+    grade: 'Q7',
+  },
+  {
+    id: 'joi2020_yo1a_a',
+    contest_id: 'joi2020yo1a',
+    problem_index: 'A',
+    name: '3 つの整数 (Three Integers)',
+    title: 'A. 3 つの整数 (Three Integers)',
+    grade: 'Q9',
+  },
   {
     id: 'joi2016yo_a',
     contest_id: 'joi2016yo',

diff --git a/src/lib/components/TaskTables/TaskTable.svelte b/src/lib/components/TaskTables/TaskTable.svelte
@@ -106,7 +106,10 @@
   }
 
   function getBodyCellClasses(taskResult: TaskResult, totalColumns: number): string {
-    const baseClasses = 'w-1/2 xs:w-1/3 sm:w-1/4 md:w-1/5 lg:w-1/6 px-1 py-1';
+    const baseClasses =
+      totalColumns >= 5
+        ? 'w-1/2 xs:w-1/3 sm:w-1/4 md:w-1/5 lg:w-1/6 px-1 py-1'
+        : 'w-1/2 xs:w-1/3 sm:w-1/4 px-1 py-1';
     const additionalClasses = totalColumns > 8 ? '2xl:w-1/7 py-2' : '';
     const backgroundColor = getBackgroundColor(taskResult);
 
@@ -199,7 +202,12 @@
       <div class="w-full sticky top-0 z-20 border-b border-gray-200 dark:border-gray-100">
         <Table id="task-table" class="text-md table-fixed w-full" aria-label="Task table">
           <TableHead class="text-sm border-gray-200 dark:border-gray-100">
-            <TableHeadCell class="w-full xl:w-16 px-2 text-center" scope="col">Round</TableHeadCell>
+            <TableHeadCell
+              class="w-full {contestTable.displayConfig.roundLabelWidth} px-2 text-center"
+              scope="col"
+            >
+              Round
+            </TableHeadCell>
 
             {#if contestTable.headerIds}
               {#each contestTable.headerIds as taskTableHeaderId (taskTableHeaderId)}
@@ -224,7 +232,8 @@
               <TableBodyRow class={getBodyRowClasses(totalColumns)}>
                 {#if contestTable.displayConfig.isShownRoundLabel}
                   <TableBodyCell
-                    class="w-full xl:w-16 truncate px-2 py-2 text-center bg-gray-50 dark:bg-gray-800"
+                    class="w-full {contestTable.displayConfig
+                      .roundLabelWidth} truncate px-2 py-2 text-center bg-gray-50 dark:bg-gray-800"
                   >
                     {getContestRoundLabel(provider, contestId)}
                   </TableBodyCell>

diff --git a/src/lib/types/contest_table_provider.ts b/src/lib/types/contest_table_provider.ts
@@ -125,10 +125,12 @@ export type ContestTablesMetaData = {
  * @interface ContestTableDisplayConfig
  * @property {boolean} isShownHeader - Whether to display the table header
  * @property {boolean} isShownRoundLabel - Whether to display round labels in the contest table
+ * @property {string} roundLabelWidth - tailwind CSS width for the round label column, e.g., "w-16" or "w-20"
  * @property {boolean} isShownTaskIndex - Whether to display task index in the contest table cells
  */
 export interface ContestTableDisplayConfig {
   isShownHeader: boolean;
   isShownRoundLabel: boolean;
+  roundLabelWidth: string;
   isShownTaskIndex: boolean;
 }
diff --git a/src/lib/utils/contest_table_provider.ts b/src/lib/utils/contest_table_provider.ts
@@ -98,6 +98,7 @@ export abstract class ContestTableProviderBase implements ContestTableProvider {
     return {
       isShownHeader: true,
       isShownRoundLabel: true,
+      roundLabelWidth: 'xl:w-16', // Default width for task index column
       isShownTaskIndex: false,
     };
   }
@@ -230,6 +231,7 @@ export class EDPCProvider extends ContestTableProviderBase {
     return {
       isShownHeader: false,
       isShownRoundLabel: false,
+      roundLabelWidth: '', // No specific width for task index in EDPC
       isShownTaskIndex: true,
     };
   }
@@ -261,6 +263,7 @@ export class TDPCProvider extends ContestTableProviderBase {
     return {
       isShownHeader: false,
       isShownRoundLabel: false,
+      roundLabelWidth: '', // No specific width for task index in TDPC
       isShownTaskIndex: true,
     };
   }
@@ -270,6 +273,41 @@ export class TDPCProvider extends ContestTableProviderBase {
   }
 }
 
+const regexForJoiFirstQualRound = /^(joi)(\d{4})(yo1)(a|b|c)$/i;
+
+export class JOIFirstQualRoundProvider extends ContestTableProviderBase {
+  protected setFilterCondition(): (taskResult: TaskResult) => boolean {
+    return (taskResult: TaskResult) => {
+      if (classifyContest(taskResult.contest_id) !== this.contestType) {
+        return false;
+      }
+
+      return regexForJoiFirstQualRound.test(taskResult.contest_id);
+    };
+  }
+
+  getMetadata(): ContestTableMetaData {
+    return {
+      title: 'JOI 一次予選',
+      abbreviationName: 'joiFirstQualRound',
+    };
+  }
+
+  getDisplayConfig(): ContestTableDisplayConfig {
+    return {
+      isShownHeader: true,
+      isShownRoundLabel: true,
+      isShownTaskIndex: false,
+      roundLabelWidth: 'xl:w-28',
+    };
+  }
+
+  getContestRoundLabel(contestId: string): string {
+    const contestNameLabel = getContestNameLabel(contestId);
+    return contestNameLabel.replace('JOI 一次予選 ', '');
+  }
+}
+
 /**
  * A class that manages individual provider groups
  * Manages multiple ContestTableProviders as a single group,
@@ -415,6 +453,12 @@ export const prepareContestProviderPresets = () => {
         { contestType: ContestType.EDPC, provider: new EDPCProvider(ContestType.EDPC) },
         { contestType: ContestType.TDPC, provider: new TDPCProvider(ContestType.TDPC) },
       ),
+
+    JOIFirstQualRound: () =>
+      new ContestTableProviderGroup(`JOI 一次予選`, {
+        buttonLabel: 'JOI 一次予選',
+        ariaLabel: 'Filter JOI First Qualifying Round',
+      }).addProvider(ContestType.JOI, new JOIFirstQualRoundProvider(ContestType.JOI)),
   };
 };
 
@@ -423,6 +467,7 @@ export const contestTableProviderGroups = {
   abc319Onwards: prepareContestProviderPresets().ABC319Onwards(),
   fromAbc212ToAbc318: prepareContestProviderPresets().ABC212ToABC318(),
   dps: prepareContestProviderPresets().dps(), // Dynamic Programming (DP) Contests
+  joiFirstQualRound: prepareContestProviderPresets().JOIFirstQualRound(),
 };
 
 export type ContestTableProviderGroups = keyof typeof contestTableProviderGroups;