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wa了一早上竟然是Impossible拼错了,啊啊啊,~

Posted by arduous at 2012-09-06 10:36:47 on Problem 1753 and last updated at 2012-09-06 10:39:04
 官方测试数据:

bwbw
wwww
bbwb
bwwb
Impossible

bwwb
bbwb
bwwb
bwww
4

wwww
wwww
wwww
wwww
0

bbbb
bbbb
bbbb
bbbb
0

bbbb
bwbb
bbbb
bbbb
Impossible

bwbb
bwbb
bwbb
bbbb
Impossible

bwbb
wwwb
bwbb
bbbb
1

wwww
wwwb
wwbb
wwwb
1

wwww
wwww
wwwb
wwbb
1

wbwb
bwbw
wbwb
bwbw
Impossible

bbbb
bwwb
bwwb
bbbb
4

bwwb
wbbw
wbbw
bwwb
4

bbww
bbww
wwbb
wwbb
Impossible

bbwb
bbbw
wwbb
wwwb
Impossible

wwwb
wwbw
wbww
wwbw
Impossible

bbbb
wwww
wwbb
wbbb
Impossible

bwwb
wbwb
wbbb
wbbb
4

bwbb
bwbb
bwbw
bbbw
5

wbwb
bbbb
bbww
wbbb
6

bbwb
bbbb
wbwb
bbbb
5

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