제출 #70970

4 3
2 3 5
1 2 9
1 4 3
3 2

-1

31

5 4
1 4 10
2 5 7
3 4 7
1 5 10
3 5

-1

44

5 6
2 4 5
2 5 8
1 4 4
1 5 5
1 3 3
2 3 6
4 5

-1

13

2 0
1 2

런타임 에러 (RTE)
stderr:
 Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: Index 1 out of bounds for length 1
	at Main.add(Main.java:40)
	at Main.main(Main.java:80)

-1

3 0
2 3

런타임 에러 (RTE)
stderr:
 Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: Index 1 out of bounds for length 1
	at Main.add(Main.java:40)
	at Main.main(Main.java:80)

-1

3 0
1 2

런타임 에러 (RTE)
stderr:
 Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: Index 1 out of bounds for length 1
	at Main.add(Main.java:40)
	at Main.main(Main.java:80)

-1