diff --git a/models/problem.js b/models/problem.js
index 6916ddd..2b8a1f8 100644
--- a/models/problem.js
+++ b/models/problem.js
@@ -21,7 +21,7 @@
 
 let statisticsStatements = {
   fastest:
-'\
+  '\
 SELECT \
 	DISTINCT(`user_id`) AS `user_id`,  \
 	( \
@@ -46,7 +46,7 @@ WHERE  \
 ORDER BY `total_time` ASC \
 ',
   slowest:
-' \
+  ' \
 SELECT \
 	DISTINCT(`user_id`) AS `user_id`,  \
 	( \
@@ -71,7 +71,7 @@ WHERE  \
 ORDER BY `total_time` DESC \
 ',
   shortest:
-' \
+  ' \
 SELECT \
 	DISTINCT(`user_id`) AS `user_id`,  \
 	( \
@@ -96,7 +96,7 @@ WHERE  \
 ORDER BY `code_length` ASC \
 ',
   longest:
-' \
+  ' \
 SELECT \
 	DISTINCT(`user_id`) AS `user_id`,  \
 	( \
@@ -121,7 +121,7 @@ WHERE  \
 ORDER BY `code_length` DESC \
 ',
   earliest:
-' \
+  ' \
 SELECT \
 	DISTINCT(`user_id`) AS `user_id`,  \
 	( \
@@ -146,7 +146,7 @@ WHERE  \
 ORDER BY `submit_time` ASC \
 ',
   min:
-' \
+  ' \
 SELECT \
 	DISTINCT(`user_id`) AS `user_id`,  \
 	( \
@@ -171,7 +171,7 @@ WHERE  \
 ORDER BY `max_memory` ASC \
 ',
   max:
-' \
+  ' \
 SELECT \
 	DISTINCT(`user_id`) AS `user_id`,  \
 	( \
@@ -201,6 +201,7 @@ let Sequelize = require('sequelize');
 let db = syzoj.db;
 
 let User = syzoj.model('user');
+let JudgeState = syzoj.model('judge_state');
 let File = syzoj.model('file');
 const fs = require('fs-extra');
 const path = require('path');
@@ -249,17 +250,17 @@ let model = db.define('problem', {
     values: ['traditional', 'submit-answer', 'interaction']
   }
 }, {
-  timestamps: false,
-  tableName: 'problem',
-  indexes: [
-    {
-      fields: ['title'],
-    },
-    {
-      fields: ['user_id'],
-    }
-  ]
-});
+    timestamps: false,
+    tableName: 'problem',
+    indexes: [
+      {
+        fields: ['title'],
+      },
+      {
+        fields: ['user_id'],
+      }
+    ]
+  });
 
 let Model = require('./common');
 class Problem extends Model {
@@ -472,8 +473,6 @@ class Problem extends Model {
   async getJudgeState(user, acFirst) {
     if (!user) return null;
 
-    let JudgeState = syzoj.model('judge_state');
-
     let where = {
       user_id: user.id,
       problem_id: this.id
@@ -498,6 +497,12 @@ class Problem extends Model {
     });
   }
 
+  async resetSubmissionCount() {
+    this.submit_num = await JudgeState.count({ score: { $not: null }, problem_id: this.id });
+    this.ac_num = await JudgeState.count({ score: 100, problem_id: this.id });
+    await this.save();
+  }
+
   // type: fastest / slowest / shortest / longest / earliest
   async countStatistics(type) {
     let statement = statisticsStatements[type];
@@ -585,10 +590,12 @@ class Problem extends Model {
     let addTagIDs = newTagIDs.filter(x => !oldTagIDs.includes(x));
 
     for (let tagID of delTagIDs) {
-      let map = await ProblemTagMap.findOne({ where: {
-        problem_id: this.id,
-        tag_id: tagID
-      } });
+      let map = await ProblemTagMap.findOne({
+        where: {
+          problem_id: this.id,
+          tag_id: tagID
+        }
+      });
 
       await map.destroy();
     }
@@ -605,10 +612,10 @@ class Problem extends Model {
 
   async changeID(id) {
     id = parseInt(id);
-    await db.query('UPDATE `problem`         SET `id`         = ' + id                      + ' WHERE `id`         = ' + this.id);
-    await db.query('UPDATE `judge_state`     SET `problem_id` = ' + id                      + ' WHERE `problem_id` = ' + this.id);
-    await db.query('UPDATE `problem_tag_map` SET `problem_id` = ' + id                      + ' WHERE `problem_id` = ' + this.id);
-    await db.query('UPDATE `article`         SET `problem_id` = ' + id                      + ' WHERE `problem_id` = ' + this.id);
+    await db.query('UPDATE `problem`         SET `id`         = ' + id + ' WHERE `id`         = ' + this.id);
+    await db.query('UPDATE `judge_state`     SET `problem_id` = ' + id + ' WHERE `problem_id` = ' + this.id);
+    await db.query('UPDATE `problem_tag_map` SET `problem_id` = ' + id + ' WHERE `problem_id` = ' + this.id);
+    await db.query('UPDATE `article`         SET `problem_id` = ' + id + ' WHERE `problem_id` = ' + this.id);
 
     let Contest = syzoj.model('contest');
     let contests = await Contest.all();
diff --git a/modules/admin.js b/modules/admin.js
index 2de0d5d..e448c32 100644
--- a/modules/admin.js
+++ b/modules/admin.js
@@ -198,6 +198,19 @@ app.post('/admin/privilege', async (req, res) => {
   }
 });
 
+app.get('/admin/other', async (req, res) => {
+  try {
+    if (!res.locals.user || !res.locals.user.is_admin) throw new ErrorMessage('您没有权限进行此操作。');
+
+    res.render('admin_other');
+  } catch (e) {
+    syzoj.log(e);
+    res.render('error', {
+      err: e
+    })
+  }
+});
+
 app.get('/admin/rejudge', async (req, res) => {
   try {
     if (!res.locals.user || !res.locals.user.is_admin) throw new ErrorMessage('您没有权限进行此操作。');
@@ -214,6 +227,28 @@ app.get('/admin/rejudge', async (req, res) => {
   }
 });
 
+app.post('/admin/other', async (req, res) => {
+  try {
+    if (!res.locals.user || !res.locals.user.is_admin) throw new ErrorMessage('您没有权限进行此操作。');
+
+    if (req.body.type === 'reset_count') {
+      const problems = await Problem.query();
+      for(const p of problems) {
+        await p.resetSubmissionCount();
+      }
+    } else {
+      throw new ErrorMessage("操作类型不正确");
+    }
+
+    res.redirect(syzoj.utils.makeUrl(['admin', 'other']));
+  } catch (e) {
+    syzoj.log(e);
+    res.render('error', {
+      err: e
+    })
+  }
+});
+
 app.post('/admin/rejudge', async (req, res) => {
   try {
     if (!res.locals.user || !res.locals.user.is_admin) throw new ErrorMessage('您没有权限进行此操作。');
diff --git a/modules/problem.js b/modules/problem.js
index 7386e2f..7fa2509 100644
--- a/modules/problem.js
+++ b/modules/problem.js
@@ -533,30 +533,30 @@ app.post('/problem/:id/manage', app.multer.fields([{ name: 'testdata', maxCount:
 
 // Set problem public
 async function setPublic(req, res, is_public) {
-  try {
-    let id = parseInt(req.params.id);
-    let problem = await Problem.fromID(id);
-    if (!problem) throw new ErrorMessage('无此题目。');
+    try {
+      let id = parseInt(req.params.id);
+      let problem = await Problem.fromID(id);
+      if (!problem) throw new ErrorMessage('无此题目。');
 
-    let allowedManage = await problem.isAllowedManageBy(res.locals.user);
-    if (!allowedManage) throw new ErrorMessage('您没有权限进行此操作。');
+      let allowedManage = await problem.isAllowedManageBy(res.locals.user);
+      if (!allowedManage) throw new ErrorMessage('您没有权限进行此操作。');
 
-    problem.is_public = is_public;
-    problem.publicizer_id = res.locals.user.id;
-    await problem.save();
+      problem.is_public = is_public;
+      problem.publicizer_id = res.locals.user.id;
+      await problem.save();
 
-    res.redirect(syzoj.utils.makeUrl(['problem', id]));
-  } catch (e) {
-    syzoj.log(e);
-    res.render('error', {
-      err: e
-    });
+      res.redirect(syzoj.utils.makeUrl(['problem', id]));
+    } catch (e) {
+      syzoj.log(e);
+      res.render('error', {
+        err: e
+      });
+    }
   }
-}
 
 app.post('/problem/:id/public', async (req, res) => {
-  await setPublic(req, res, true);
-});
+    await setPublic(req, res, true);
+  });
 
 app.post('/problem/:id/dis_public', async (req, res) => {
   await setPublic(req, res, false);
diff --git a/views/admin_header.ejs b/views/admin_header.ejs
index ccdd354..23bcad1 100644
--- a/views/admin_header.ejs
+++ b/views/admin_header.ejs
@@ -5,7 +5,8 @@ let items = {
   privilege: '权限管理',
   rejudge: '一键重测',
   links: '友链管理',
-  raw: '配置文件'
+  raw: '配置文件',
+  other: '其他操作'
 };
 %>
 <% this.title = items[this.adminPage] + ' - 后台管理'; %>
diff --git a/views/admin_other.ejs b/views/admin_other.ejs
new file mode 100644
index 0000000..01d1b59
--- /dev/null
+++ b/views/admin_other.ejs
@@ -0,0 +1,7 @@
+<% this.adminPage = 'rejudge'; %>
+<% include admin_header %>
+<form method="post" class="ui form">
+  <button class="ui blue button" name="type" value="reset_count" type="submit">重新计算提交及 AC 数</button>
+  <!-- <button name="type" value="reset_size" type="submit">重新计算代码大小</button> -->
+</form>
+<% include admin_footer %>
diff --git a/views/admin_rejudge.ejs b/views/admin_rejudge.ejs
index 2bceb43..10acd21 100644
--- a/views/admin_rejudge.ejs
+++ b/views/admin_rejudge.ejs
@@ -1,7 +1,6 @@
 <% this.adminPage = 'rejudge'; %>
 <% include admin_header %>
 <form method="post" class="ui form">
-
   <div class="four fields">
     <div class="field">
       <label>题目 ID</label>
diff --git a/views/problem_manage.ejs b/views/problem_manage.ejs
index b553cf8..2330e83 100644
--- a/views/problem_manage.ejs
+++ b/views/problem_manage.ejs
@@ -4,6 +4,7 @@
     <div class="ui grid">
     <div class="row">
       <div class="seven wide column">
+        <form class="ui form" method="post" action=""></form>
         <% include problem_testcases %>
       </div>
       <div class="nine wide column">