[bot]auto workbook update

Author: [bot]auto-workbook

workbook/0x02.md

@@ -1,6 +1,6 @@
 # 기초 코드 작성 요령 II
 
-![100%](https://progress-bar.dev/13/?scale=28&title=progress&width=500&color=babaca&suffix=/28)
+![100%](https://progress-bar.dev/15/?scale=28&title=progress&width=500&color=babaca&suffix=/28)
 
 [문제집 링크](https://www.acmicpc.net/workbook/view/7306)
 
@@ -25,8 +25,8 @@
 | 1267 | [핸드폰 요금](https://www.acmicpc.net/problem/1267) | - |
 | 10804 | [카드 역배치](https://www.acmicpc.net/problem/10804) | - |
 | 15552 | [빠른 A+B](https://www.acmicpc.net/problem/15552) | - |
-| 2438 | [별 찍기 - 1](https://www.acmicpc.net/problem/2438) | - |
-| 2439 | [별 찍기 - 2](https://www.acmicpc.net/problem/2439) | - |
+| 2438 | [별 찍기 - 1](https://www.acmicpc.net/problem/2438) | [정답 코드](../0x02/solutions/2438.cpp) |
+| 2439 | [별 찍기 - 2](https://www.acmicpc.net/problem/2439) | [정답 코드](../0x02/solutions/2439.cpp) |
 | 2440 | [별 찍기 - 3](https://www.acmicpc.net/problem/2440) | - |
 | 2441 | [별 찍기 - 4](https://www.acmicpc.net/problem/2441) | - |
 | 2442 | [별 찍기 - 5](https://www.acmicpc.net/problem/2442) | [정답 코드](../0x02/solutions/2442.cpp) |