[bot]auto workbook update

[bot]auto-workbook · [bot]auto-workbook · commit 1eb7689d00b4 · 2023-02-20T13:03:51.000Z
diff --git a/workbook/0x19.md b/workbook/0x19.md
@@ -13,7 +13,7 @@
 | 기본 문제✔ | 1240 | [노드사이의 거리](https://www.acmicpc.net/problem/1240) | [정답 코드](../0x19/solutions/1240.cpp) |
 | 기본 문제 | 22856 | [트리 순회](https://www.acmicpc.net/problem/22856) | [정답 코드](../0x19/solutions/22856.cpp) |
 | 기본 문제 | 1068 | [트리](https://www.acmicpc.net/problem/1068) | [정답 코드](../0x19/solutions/1068.cpp), [별해 1](../0x19/solutions/1068_1.cpp) |
-| 응용 문제✔ | 20955 | [민서의 응급 수술](https://www.acmicpc.net/problem/20955) | [정답 코드](../0x19/solutions/20955.cpp) |
+| 응용 문제✔ | 20955 | [민서의 응급 수술](https://www.acmicpc.net/problem/20955) | [정답 코드](../0x19/solutions/20955.cpp), [별해 1](../0x19/solutions/20955_1.cpp) |
 | 응용 문제✔ | 14267 | [회사 문화 1](https://www.acmicpc.net/problem/14267) | [정답 코드](../0x19/solutions/14267.cpp) |
 | 응용 문제✔ | 2250 | [트리의 높이와 너비](https://www.acmicpc.net/problem/2250) | [정답 코드](../0x19/solutions/2250.cpp) |
 | 응용 문제 | 2533 | [사회망 서비스(SNS)](https://www.acmicpc.net/problem/2533) | [정답 코드](../0x19/solutions/2533.cpp) |
