diff --git a/package.json b/package.json
index 6071104..d9df2a8 100644
--- a/package.json
+++ b/package.json
@@ -37,6 +37,7 @@
     "file-size": "^1.0.0",
     "fs-extra": "^2.1.2",
     "gravatar": "^1.5.2",
+    "js-yaml": "^3.9.0",
     "moemark-renderer": "^1.2.6",
     "moment": "^2.15.0",
     "multer": "^1.2.0",
diff --git a/utility.js b/utility.js
index e754f1b..a1534ed 100644
--- a/utility.js
+++ b/utility.js
@@ -209,7 +209,7 @@ module.exports = {
       let list = await (await fs.readdirAsync(dir)).filterAsync(async x => await syzoj.utils.isFile(path.join(dir, x)));
 
       let res = [];
-      if (!list.includes('data_rule.txt')) {
+      if (!list.includes('data.yml')) {
         res[0] = {};
         res[0].cases = [];
         for (let file of list) {
@@ -247,52 +247,37 @@ module.exports = {
 
           return getLastInteger(a.input) - getLastInteger(b.input);
         });
+
+        res.spj = list.some(s => s.startsWith('spj_'));
       } else {
-        let lines = (await fs.readFileAsync(path.join(dir, 'data_rule.txt'))).toString().split('\r').join('').split('\n').filter(x => x.length !== 0);
+        let config = require('js-yaml').load((await fs.readFileAsync(dir + '/data.yml')));
 
-        let input, output, answer;
-        if (submitAnswer) {
-          if (lines.length < 4) throw '无效的数据配置文件（data_rule.txt）。';
-          input = lines[lines.length - 3];
-          output = lines[lines.length - 2];
-          answer = lines[lines.length - 1];
-        } else {
-          if (lines.length < 3) throw '无效的数据配置文件（data_rule.txt）。';
-          input = lines[lines.length - 2];
-          output = lines[lines.length - 1];
-        }
+        let input = config.inputFile, output = config.answerFile, answer = config.userOutput;
 
-        for (let s = 0; s < lines.length - (submitAnswer ? 3 : 2); ++s) {
-          res[s] = {};
-          res[s].cases = [];
-          let numbers = lines[s].split(' ').filter(x => x);
-          if (numbers[0].includes(':')) {
-            let tokens = numbers[0].split(':');
-            res[s].type = tokens[0] || 'sum';
-            res[s].score = parseFloat(tokens[1]) || (100 / (lines.length - 2));
-            numbers.shift();
-          } else {
-            res[s].type = 'sum';
-            res[s].score = 100;
-          }
-          for (let i of numbers) {
-            let testcase = {
-              input: input.replace('#', i),
-              output: output.replace('#', i)
-            };
+        res = config.subtasks.map(st => ({
+          score: st.score,
+          type: st.type,
+          cases: st.cases.map(c => {
+            function getFileName(template, id) {
+              let s = template.split('#').join(String(id));
+              if (!list.includes(s)) throw `找不到文件 ${s}`;
+              return s;
+            }
 
-            if (submitAnswer) testcase.answer = answer.replace('#', i);
+            let o = {};
+            if (input) o.input = getFileName(input, c);
+            if (output) o.output = getFileName(output, c);
+            if (answer) o.answer = getFileName(answer, c);
 
-            if (testcase.input !== '-' && !list.includes(testcase.input)) throw `找不到文件 ${testcase.input}`;
-            if (testcase.output !== '-' && !list.includes(testcase.output)) throw `找不到文件 ${testcase.output}`;
-            res[s].cases.push(testcase);
-          }
-        }
+            return o;
+          })
+        }));
 
         res = res.filter(x => x.cases && x.cases.length !== 0);
+
+        res.spj = !!config.specialJudge;
       }
 
-      res.spj = list.some(s => s.startsWith('spj_'));
       return res;
     } catch (e) {
       console.log(e);
diff --git a/views/problem_testcases.ejs b/views/problem_testcases.ejs
index 4abc867..a85959d 100644
--- a/views/problem_testcases.ejs
+++ b/views/problem_testcases.ejs
@@ -12,6 +12,8 @@ let subtaskType = {
 %>
   <% if (testcases.spj) { %>
     <p>评测方式：Special Judge</p>
+  <% } else if (problem.type === 'interaction') { %>
+    <p>评测方式：交互</p>
   <% } else { %>
     <p>评测方式：文本比较</p>
   <% } %>
@@ -33,12 +35,12 @@ let subtaskType = {
               <tr class="center aligned">
                 <td style="width: 33%; "><%= testcase.input || '-' %></td>
                 <td style="width: 33%; "><%= testcase.output || '-' %></td>
-                <td style="width: 33%; "><%= testcase.answer %></td>
+                <td style="width: 33%; "><%= testcase.answer || '-' %></td>
               </tr>
             <% } else { %>
               <tr class="center aligned">
-                <td style="width: 50%; "><%= testcase.input %></td>
-                <td style="width: 50%; "><%= testcase.output %></td>
+                <td style="width: 50%; "><%= testcase.input || '-' %></td>
+                <td style="width: 50%; "><%= testcase.output || '-' %></td>
               </tr>
             <% } %>
           <% } %>
diff --git a/views/submission_content.ejs b/views/submission_content.ejs
index 47bac1d..24b1c3c 100644
--- a/views/submission_content.ejs
+++ b/views/submission_content.ejs
@@ -147,7 +147,7 @@ else problemUrl = syzoj.utils.makeUrl(['problem', judge.problem_id]);
   <h3 class="ui header">系统调试信息</h3>
   <div class="ui existing segment"><pre style="margin-top: 0; margin-bottom: 0; "><code><%= judge.result.message %></code></pre></div>
 <% } else if (judge.result.spj_compiler_output) { %>
-  <h3 class="ui header">Special Judge 编译信息</h3>
+  <h3 class="ui header"><%= judge.problem.type === 'interaction' ? '交互程序' : 'Special Judge ' %>编译信息</h3>
   <div class="ui existing segment"><pre style="margin-top: 0; margin-bottom: 0; "><code><%- syzoj.utils.ansiToHTML(judge.result.spj_compiler_output) %></code></pre></div>
 <% } else if (judge.allowedSeeCase && judge.result.subtasks && (judge.result.subtasks.length !== 1 || judge.result.subtasks[0].case_num)) { %>
 <div class="ui styled fluid accordion" id="subtasks_list">
@@ -189,12 +189,14 @@ else problemUrl = syzoj.utils.makeUrl(['problem', judge.problem_id]);
           <p>
               <strong>输入文件<% if (testcase.input_file_name) { %>（<span style="font-family: monospace; "><%= testcase.input_file_name %></span>）<% } %></strong>
               <div class="ui existing segment"><pre style="margin-top: 0; margin-bottom: 0; "><code><%= testcase.input %></code></pre></div>
-              <strong>输出文件<% if (testcase.output_file_name) { %>（<span style="font-family: monospace; "><%= testcase.output_file_name %></span>）<% } %></strong>
-              <div class="ui existing segment"><pre style="margin-top: 0; margin-bottom: 0; "><code><%= testcase.answer %></code></pre></div>
-              <strong>选手输出</strong>
-              <div class="ui existing segment"><pre style="margin-top: 0; margin-bottom: 0; "><code><%= testcase.user_out %></code></pre></div>
+              <% if (judge.problem.type !== 'interaction') { %>
+                <strong>输出文件<% if (testcase.output_file_name) { %>（<span style="font-family: monospace; "><%= testcase.output_file_name %></span>）<% } %></strong>
+                <div class="ui existing segment"><pre style="margin-top: 0; margin-bottom: 0; "><code><%= testcase.answer %></code></pre></div>
+                <strong>选手输出</strong>
+                <div class="ui existing segment"><pre style="margin-top: 0; margin-bottom: 0; "><code><%= testcase.user_out %></code></pre></div>
+              <% } %>
               <% if (testcase.spj_message) { %>
-                <strong>Special Judge 信息</strong>
+                <strong><%= judge.problem.type === 'interaction' ? '交互程序' : 'Special Judge ' %>信息</strong>
                 <div class="ui existing segment"><pre style="margin-top: 0; margin-bottom: 0; "><code><%= testcase.spj_message %></code></pre></div>
               <% } %>
               <% if (testcase.user_err) { %>