Robot
http://acm.hdu.edu.cn/showproblem.php?pid=3028
Problem Description
There are n places (numbered 1,2,...,n), and at any second X, in place A, it will appear k robots. Now you have normal weapons. If at the second X and you are in place A, you will distroy those k robots. Otherwise, you have a special weapon (named O4), if you
at second X in the place A and use O4, you will destroy all the robots which appear in the place adjoining to A (OF COUSE include the place A). You move f......
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