diff --git "a/H0ngJu/BFS/\353\243\250\353\250\270.py" "b/H0ngJu/BFS/\353\243\250\353\250\270.py"
new file mode 100644
index 0000000..2ccdef8
--- /dev/null
+++ "b/H0ngJu/BFS/\353\243\250\353\250\270.py"
@@ -0,0 +1,37 @@
+import sys
+from collections import deque
+
+def input(): return sys.stdin.readline().rstrip()
+
+N = int(input())
+info = [[]]
+for i in range(N):
+    people = list(map(int, input().split()))
+    info.append(people[:-1])
+M = int(input()) # 최초 유포자 수
+rumor = list(map(int, input().split()))
+
+answer = [-1] * (N+1)
+belive = [0] * (N+1)
+time = 0
+q = deque()
+
+for r in rumor: # 최초 유포자
+    q.append([r, 0])
+    answer[r] = 0
+
+while q:
+    person, time = q.popleft()
+    
+    cnt = 0
+    for p in info[person]:
+        if p == 0:
+            break
+        if answer[p] == -1:
+            belive[p] += 1
+            
+            if belive[p] >= (len(info[p]) + 1) // 2:
+                answer[p] = time + 1
+                q.append((p, time+1))   
+
+print(*answer[1:])
\ No newline at end of file
diff --git a/H0ngJu/README.md b/H0ngJu/README.md
index 57ae2b1..e723bdb 100644
--- a/H0ngJu/README.md
+++ b/H0ngJu/README.md
@@ -42,4 +42,4 @@
 | 38차시 | 2024.01.06 |   정렬    |                                           [최소 회의실 개수](https://www.acmicpc.net/problem/19598)                                           | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/263 |
 | 39차시 | 2024.01.18 |   정렬    |                                                [컬러볼](https://www.acmicpc.net/problem/10800)                                                | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/266 |
 | 40차시 | 2025.01.28 |  그리디   |                                              [흙길 보수하기](https://www.acmicpc.net/problem/1911)                                              | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/267 |
-=======
+| 41차시 | 2025.02.04 |  BFS   |                                              [루머](https://www.acmicpc.net/problem/19538)                                              | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/270 |
\ No newline at end of file