117차 2번 문제풀이

Author: hangyeol

live11/test117/문제2/백한결.py

@@ -0,0 +1,18 @@
+import sys
+from collections import defaultdict
+
+
+def main():
+    input = sys.stdin.readline
+
+    N = int(input())
+    graph = defaultdict(list)
+
+    for _ in range(N-1):
+        a, b = map(int, input().split())
+        graph[a].append(b)
+
+    print(graph)
+
+if __name__ == '__main__':
+    main()