제출 #175744

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

Case 1: A forest of 2 trees.
Case 2: A forest of 9 trees.
Case 3: There is one tree.
Case 4: There is one tree.

Case 1: There is one tree.
Case 2: A forest of 9 trees.
Case 3: There is one tree.
Case 4: There is one tree.

10 5
6 4
5 4
8 7
3 2
5 6
6 1
2 1
7 6
4 2
2 5
5 3
7 6
2 3
1 5
9 2
5 6
4 3
0 0

Case 1: A forest of 5 trees.
Case 2: A forest of 5 trees.
Case 3: A forest of 2 trees.
Case 4: A forest of 7 trees.

Case 1: A forest of 5 trees.
Case 2: A forest of 5 trees.
Case 3: There is one tree.
Case 4: A forest of 7 trees.

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

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

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

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

런타임 에러 (RTE)

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

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

런타임 에러 (RTE)

Case 1: A forest of 5 trees.
Case 2: A forest of 8 trees.
Case 3: There is one tree.
Case 4: No trees.
Case 5: There is one tree.