diff --git "a/yongjun-0903/\353\204\244\355\212\270\354\233\214\355\201\254.py" "b/yongjun-0903/\353\204\244\355\212\270\354\233\214\355\201\254.py"
new file mode 100644
index 0000000..0d3d976
--- /dev/null
+++ "b/yongjun-0903/\353\204\244\355\212\270\354\233\214\355\201\254.py"
@@ -0,0 +1,13 @@
+def solution(n, computers):
+    network = 0
+    graph = {}
+    for i in range(n):
+        if i not in graph:
+            graph[i] = []
+        for j in range(n):
+            if i != j and computers[i][j] == 1:
+                graph[i].append(j)
+    print(graph)
+    
+    visited = [False for _ in range(n)]
+    print(visited)