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poj-2975-Nim Description Nim is a 2-player game featuring several piles of stones. Players alternate turns, and on his/her turn, a player’s move consists of removing one or more stones from an
Fox and Cross Description Fox Ciel has a board with n rows and n columns. So, the board consists of n × n cells. Each cell contains either a symbol '.', or a symbol '#'. A cross on the board i
Highways description The island nation of Flatopia is perfectly flat. Unfortunately, Flatopia has a very poor system of public highways. The Flatopian government is aware of this problem and has
Burn the Linked Camp It is well known that, in the period of The Three Empires, Liu Bei, the emperor of the Shu Empire, was defeated by Lu Xun, a general of the Wu Empire. The defeat was due to L
Rectangle and Circle Problem Description Given a rectangle and a circle in the coordinate system(two edges of the rectangle are parallel with the X-axis, and the other two are parallel with t
开机的时候按Esc调出GRUB菜单。进入高级模式。 选中恢复模式(recover mode)后按‘e’键。 把ro recovery nomodeset 改成rw single init=/bin/bash 然后按ctrl+x 进入单用户模式。 然后重置root密码,命令为 passwd root。 重启,就ok啦。
Long Long Message Time Limit: 4000MS Memory Limit: 131072K Total Submissions: 20935 Accepted: 8622 Case Time Limit: 1000MS Description The little cat is majoring in physics in the capi