diff --git a/_posts/Algorithms/BOJ/2023-11-02-23-random-ps-1.md b/_posts/Algorithms/BOJ/2023-11-02-23-random-ps-1.md
index cd350fa..8159c69 100644
--- a/_posts/Algorithms/BOJ/2023-11-02-23-random-ps-1.md
+++ b/_posts/Algorithms/BOJ/2023-11-02-23-random-ps-1.md
@@ -13,6 +13,8 @@ date: 2023-11-02
 github_title: 2023-11-02-23-random-ps-1
 ---
 
+중간고사 끝난 것을 기념으로! 근데 첫 문제는 시험 전날에 공부하기 싫어서 잡았다.
+
 ## 30323번
 
 - [BOJ 30323](https://www.acmicpc.net/problem/30323): Exponentiation