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一个月一次的月赛就被偶的一次通宵浪费了,说说对各题的想法

Posted by timeloop at 2008-08-31 20:31:05
A题就是求数学期望,说白了应该就是数列求和吧,但是偶数学太烂,推不出公式来.
再看D,要是n<=33333的话很好做,有规律的,但是n>33333后函数单调性有改变,我想了好一会还是想不出规律,于是PASS.F题是最有想法的一题,要不是太困,估计可以做出来,模拟就可以了.G题是博羿论的东西吧,完全没想法.-___________-C题是物理模拟题,本来倒想做一下的,但感觉模拟过程比较麻烦,精度问题也很麻烦,于是就睡觉去了.-_______________-
又吞了零蛋,哇卡卡.下次的目标还是破蛋.-____________-

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