제출 #43307

7
2
6
3
4
1
7
5

seq[7, 6, 5, 4, 3, 2, 1]
stack[]
seq[7, 6, 5, 4, 3]
stack[1]
seq[7]
stack[1, 3, 4, 5]
seq[7]
stack[1]
NO

NO

6
3
2
4
5
6
1

seq[6, 5, 4, 3, 2, 1]
stack[]
seq[6, 5, 4]
stack[1, 2]
seq[6, 5, 4]
stack[1]
seq[6, 5]
stack[1]
seq[6]
stack[1]
seq[]
stack[1]
+
+
+
-
-
+
-
+
-
+
-
-

+
+
+
-
-
+
-
+
-
+
-
-

2
1
2

런타임 에러 (RTE)
stderr:
 Traceback (most recent call last):
  File "Main.py", line 13, in <module>
    stack.append(seq.pop())
IndexError: pop from empty list

+
-
+
-

4
2
4
1
3

런타임 에러 (RTE)
stderr:
 Traceback (most recent call last):
  File "Main.py", line 13, in <module>
    stack.append(seq.pop())
IndexError: pop from empty list

NO

5
4
1
5
2
3

런타임 에러 (RTE)
stderr:
 Traceback (most recent call last):
  File "Main.py", line 13, in <module>
    stack.append(seq.pop())
IndexError: pop from empty list

NO