제출 #17649

2
10
OOOOIOOOIO

[]
0

0

2
10
IIIOIIIIIO

[3]
0

0

1
11
OIIOIOIOOIO

[6]
3

2

1
9
IOOOOIIOO

런타임 에러 (RTE)
stderr:
 Exception in thread "main" java.lang.IndexOutOfBoundsException: Index -1 out of bounds for length 0
	at java.base/jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:64)
	at java.base/jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:70)
	at java.base/jdk.internal.util.Preconditions.checkIndex(Preconditions.java:266)
	at java.base/java.util.Objects.checkIndex(Objects.java:361)
	at java.base/java.util.ArrayList.get(ArrayList.java:427)
	at Main.main(Main.java:35)

0