补全9月11日至13日课评：为13名学生创建请假文档，为5个班级创建总结文档

.claude/memory/temp/verify_structure.py

@@ -0,0 +1,41 @@
+# -*- coding: utf-8 -*-
+import io, re, sys
+
+def find_oj_section(html, start):
+    n = len(html)
+    depth = 1
+    i = start + len('<div class="oj-section"')
+    while depth > 0 and i < n:
+        o = html.find('<div', i)
+        c = html.find('</div>', i)
+        if c == -1:
+            return -1
+        if o != -1 and o < c:
+            depth += 1
+            i = o + 4
+        else:
+            depth -= 1
+            i = c + 6
+    return i
+
+for f in sys.argv[1:]:
+    c = io.open(f, encoding='utf-8').read()
+    pat = re.compile(r'<div class="oj-section" data-oj-section="([^"]+)">')
+    print('===', f.replace('\\', '/').split('/')[-1])
+    total_panels = 0
+    bad = []
+    for m in pat.finditer(c):
+        name = m.group(1)
+        end = find_oj_section(c, m.start())
+        blk = c[m.start():end]
+        expl = blk.count('class="oj-explains"')
+        panels = blk.count('class="prob-detail"')
+        total_panels += panels
+        if expl != 1 or panels != 5:
+            bad.append('%s: expl=%d panels=%d' % (name, expl, panels))
+    print('  oj-sections:', c.count('data-oj-section='), '| total prob-detail:', total_panels)
+    if bad:
+        print('  MISMATCH blocks:', bad)
+    else:
+        print('  OK: every student has exactly 1 题目讲解 block with 5 panels')
+    print('  div balance:', c.count('<div'), '/', c.count('</div>'))