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如果觉得自己算法没有错,但就是wa的话,很可能是精度问题,建议直接用double 存坐标,计算全用double,不要用强制转换,g++要用printf("%.2f\n",........);c++要用printf("%lf\n",......);"

Posted by 854746559 at 2011-07-22 12:50:08 on Problem 3625


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