제출 #43517

9 3
2 8 9
2 7 4
2 8 4
2 8 1

런타임 에러 (RTE)
stderr:
 Exception in thread "main" java.util.ConcurrentModificationException
	at java.base/java.util.HashMap$HashIterator.nextNode(HashMap.java:1597)
	at java.base/java.util.HashMap$KeyIterator.next(HashMap.java:1620)
	at Main.main(Main.java:73)

0

5 5
3 2 4 5
2 5 4
2 4 1
2 1 3
2 3 2
2 2 5

런타임 에러 (RTE)
stderr:
 Exception in thread "main" java.util.ConcurrentModificationException
	at java.base/java.util.HashMap$HashIterator.nextNode(HashMap.java:1597)
	at java.base/java.util.HashMap$KeyIterator.next(HashMap.java:1620)
	at Main.main(Main.java:73)

0

4 5
2 2 4
2 4 3
2 3 1
4 1 3 4 2
2 1 4
2 2 1

런타임 에러 (RTE)
stderr:
 Exception in thread "main" java.util.ConcurrentModificationException
	at java.base/java.util.HashMap$HashIterator.nextNode(HashMap.java:1597)
	at java.base/java.util.HashMap$KeyIterator.next(HashMap.java:1620)
	at Main.main(Main.java:73)

0