diff --git a/H0ngJu/README.md b/H0ngJu/README.md
index d0ad3845..9e6c102d 100644
--- a/H0ngJu/README.md
+++ b/H0ngJu/README.md
@@ -24,7 +24,9 @@
 | 20차시 | 2024.06.03 | 백트래킹 |                [스타트와 링크](https://www.acmicpc.net/problem/14889)                 | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/206 |
 | 21차시 | 2024.06.07 |  그리디  |                 [행복 유치원](https://www.acmicpc.net/problem/13164)                  | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/208 |
 | 22차시 | 2024.08.06 |   해시   |        [의상](https://school.programmers.co.kr/learn/courses/30/lessons/42578)        | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/224 |
-| 23차시 | 2024.08.10 | 해시 | [베스트앨범](https://school.programmers.co.kr/learn/courses/30/lessons/42579) | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/227 |
-| 24차시 | 2024.08.17 | BFS | [아기상어](https://www.acmicpc.net/problem/16236) | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/233 |
+| 23차시 | 2024.08.10 |   해시   |     [베스트앨범](https://school.programmers.co.kr/learn/courses/30/lessons/42579)     | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/227 |
+| 24차시 | 2024.08.17 |   BFS    |                   [아기상어](https://www.acmicpc.net/problem/16236)                   | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/233 |
+
+| 26차시 | 2024.08.24 | 그리디 | [신입사원](https://www.acmicpc.net/problem/1946) | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/237 |
 
 ---
diff --git "a/H0ngJu/\352\267\270\353\246\254\353\224\224/\354\213\240\354\236\205\354\202\254\354\233\220.py" "b/H0ngJu/\352\267\270\353\246\254\353\224\224/\354\213\240\354\236\205\354\202\254\354\233\220.py"
new file mode 100644
index 00000000..21d9e280
--- /dev/null
+++ "b/H0ngJu/\352\267\270\353\246\254\353\224\224/\354\213\240\354\236\205\354\202\254\354\233\220.py"
@@ -0,0 +1,19 @@
+import sys
+
+def input(): return sys.stdin.readline().rstrip()
+
+T = int(input())
+
+for _ in range(T):
+    N = int(input())
+    apply = [list(map(int, input().split())) for _ in range(N)]
+    apply = sorted(apply)
+    top = 0
+    cnt = 1
+
+    for i in range(1, N):
+        if apply[i][1] < apply[top][1]:
+            top = i
+            cnt += 1
+    
+    print(cnt)
\ No newline at end of file