4942: P4420 [COCI2017-2018#1] Tetris(普及-)
Memory Limit:128 MB
Time Limit:1.000 S
Judge Style:Text Compare
Creator:
Submit:0
Solved:0
Description
Input
Output
Sample Input Copy
4 5
aaaa.
.bb..
.bbxx
...xx
Sample Output Copy
2
1
0
0
0
HINT
