Discussion @ 1125. Hopscotch @ Timus Online Judge

This test can help you Barsuk Alexey [Pskov] 25 Apr 2010 22:17

9 9
WWWWWWWWW
WWWWWWWWW
WWWWWWWWW
WWWWWWWWW
WWWWWWWWW
WWWWWWWWW
WWWWWWWWW
WWWWWWWWW
WWWWWWWWW
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 1 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0

correct answer
WBWWBWWBW
BWWWBWWWB
WWWWBWWWW
WWWWBWWWW
BBBBBBBBB
WWWWBWWWW
WWWWBWWWW
BWWWBWWWB
WBWWBWWBW

Discussion of Problem 1125. Hopscotch