제출 #100074

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

런타임 에러 (RTE)
stderr:
 Traceback (most recent call last):
  File "Main.py", line 34, in <module>
    if not bf(start, n, edge):
              ^^^^^
NameError: name 'start' is not defined

NO

1
4 1 3
1 2 10000
2 3 1
3 4 1
4 2 1

런타임 에러 (RTE)
stderr:
 Traceback (most recent call last):
  File "Main.py", line 34, in <module>
    if not bf(start, n, edge):
              ^^^^^
NameError: name 'start' is not defined

YES

1
8 3 5
3 3 19
6 5 42
2 3 19
8 4 79
4 2 33
5 8 17
4 8 34
6 5 38

런타임 에러 (RTE)
stderr:
 Traceback (most recent call last):
  File "Main.py", line 34, in <module>
    if not bf(start, n, edge):
              ^^^^^
NameError: name 'start' is not defined

YES