제출 #177602

9 9
4 5
7 9
1 4
9 6
3 4
2 4
7 6
2 3
8 6
0 0

Case 1: There is one tree.

Case 1: No trees.

5 0
7 6
5 2
1 4
4 2
5 4
3 5
7 6
6 2
3 2
5 4
0 0

Case 1: A forest of 5 trees.
Case 2: A forest of 2 trees.
Case 3: A forest of 4 trees.

Case 1: A forest of 5 trees.
Case 2: There is one tree.
Case 3: A forest of 4 trees.

8 5
3 2
4 3
8 7
2 4
6 5
7 8
5 2
3 4
1 4
7 5
2 4
3 5
7 4
6 4
0 0

Case 1: A forest of 3 trees.
Case 2: There is one tree.

Case 1: A forest of 3 trees.
Case 2: No trees.

4 0
4 5
3 2
1 2
1 4
2 4
1 3
9 7
6 5
8 5
8 6
2 3
5 7
3 4
6 7
0 0

런타임 에러 (RTE)

Case 1: A forest of 4 trees.
Case 2: No trees.
Case 3: A forest of 3 trees.

6 5
2 5
3 5
4 5
6 5
1 5
8 9
5 3
6 8
7 6
3 2
4 1
1 3
2 1
1 5
7 8
2 0
0 0

런타임 에러 (RTE)

Case 1: There is one tree.
Case 2: No trees.
Case 3: A forest of 2 trees.

6 4
5 6
4 3
1 2
2 3
3 2
3 2
2 1
6 1
2 1
6 7
2 3
1 4
6 1
5 1
5 3
6 3
4 6
3 3
1 3
2 1
2 3
0 0

런타임 에러 (RTE)

Case 1: A forest of 2 trees.
Case 2: There is one tree.
Case 3: A forest of 5 trees.
Case 4: No trees.
Case 5: No trees.