3528: 【Div3】USBCO2025-Jan-Bronze-P1-AstralSuperposition
[Creator : ]
Description
Sample Input Copy
3
5 1 2
GWGWW
WGWWW
WBWGW
WWWWW
WWGWW
3 1 1
WWW
WBW
WWW
3 1 0
GGB
GGW
WWW
Sample Output Copy
4
-1
4
3
5 1 2
GWGWW
WGWWW
WBWGW
WWWWW
WWGWW
3 1 1
WWW
WBW
WWW
3 1 0
GGB
GGW
WWW
4
-1
4