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注意精度和四舍五入!

1020: Triangle

Apple0611 | 2011-04-01 22:34:49 | delete | edit
这题的精度怎么处理?是用匹克定理和最大公约数,但是为什么老wa呢....?我计算面积直接套用的坐标的面积公式...
求正解啊...??? 
matrixme | 2009-11-06 13:55:55 | delete | edit
 

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