제출 #87272

4
3
1 3 0
3 2 0
2 4 0
1 4

inf

0

7
4
1 2 67
2 5 92
5 3 5
3 7 90
1 7

inf

254

1
1
1 1 1
1 1

런타임 에러 (RTE)
stderr:
 Traceback (most recent call last):
  File "Main.py", line 10, in <module>
    bus[b[0]].append((b[1],b[2]))
KeyError: 1

0

5
1
5 4 5
5 4

런타임 에러 (RTE)
stderr:
 Traceback (most recent call last):
  File "Main.py", line 10, in <module>
    bus[b[0]].append((b[1],b[2]))
KeyError: 5

5

2
1
2 1 23
2 1

런타임 에러 (RTE)
stderr:
 Traceback (most recent call last):
  File "Main.py", line 10, in <module>
    bus[b[0]].append((b[1],b[2]))
KeyError: 2

23