diff --git a/docs/cpp/chapter-7/problems/max-of-three.md b/docs/cpp/chapter-7/problems/max-of-three.md
index 56255285..070a027f 100644
--- a/docs/cpp/chapter-7/problems/max-of-three.md
+++ b/docs/cpp/chapter-7/problems/max-of-three.md
@@ -14,7 +14,7 @@ using namespace std;
 
 int main() {
     int a, b, c;
-    cin >> a >> b >> c
+    cin >> a >> b >> c;
     cout << max_of_three(a, b, c) << endl;
 }
 ```
@@ -80,7 +80,7 @@ int max_of_three(int x, int y, int z) {
 
 int main() {
     int a, b, c;
-    cin >> a >> b >> c
+    cin >> a >> b >> c;
     cout << max_of_three(a, b, c) << endl;
 }
 ```
diff --git a/docs/cpp/index.md b/docs/cpp/index.md
index 3f2ea512..10a9d96c 100644
--- a/docs/cpp/index.md
+++ b/docs/cpp/index.md
@@ -56,9 +56,11 @@ hero:
   - [7.2 引数](/cpp/chapter-7/2)
   - [7.3 返り値](/cpp/chapter-7/3)
   - [7.4 [発展] 参照渡し](/cpp/chapter-7/4)
+  - [練習問題](/cpp/chapter-7/problems/)
 - [8. 構造体](/cpp/chapter-8/)
   - [8.1 構造体とは](/cpp/chapter-8/1)
   - [8.2 メソッド](/cpp/chapter-8/2)
+  - [練習問題](/cpp/chapter-8/problems/)
 
 ::: details 2025年度版テキスト
 
diff --git a/docs/index.md b/docs/index.md
index 3f2ea512..10a9d96c 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -56,9 +56,11 @@ hero:
   - [7.2 引数](/cpp/chapter-7/2)
   - [7.3 返り値](/cpp/chapter-7/3)
   - [7.4 [発展] 参照渡し](/cpp/chapter-7/4)
+  - [練習問題](/cpp/chapter-7/problems/)
 - [8. 構造体](/cpp/chapter-8/)
   - [8.1 構造体とは](/cpp/chapter-8/1)
   - [8.2 メソッド](/cpp/chapter-8/2)
+  - [練習問題](/cpp/chapter-8/problems/)
 
 ::: details 2025年度版テキスト