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Re:只要三点共线就输出"undefined"!

Posted by SeedJYH at 2005-10-04 16:55:11 on Problem 2298
In Reply To:只要三点共线就输出"undefined"! Posted by:zhucheng at 2005-03-19 10:38:49
一个南极一个北极怎么办……?

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