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该博客讨论了如何计算在给定大小的棋盘上，两个皇后能处于攻击位置的方式数。解题思路涉及数论，包括计算行、列和对角线上的攻击方式，并提供了通过输入样例验证的AC和WA代码示例。
Chess Queen
来源：UVA
标签：数论
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题目
You probably know how the game of chess is played and how chess queen operates. Two chess queens are in attacking position when they are on same row, column or diagonal of a chess board. Suppose two such chess queens (one black and the other white) are placed on (2 × 2) chess board. They can be in attacking positions in 12 ways, these are shown in the picture below:
Given an (N × M) board you will have to decide in how many ways 2 queens can be in attacking position in that.
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