[HDOJ]1018. Big Number
恩,简单的数学题目。
简单推导如下:
log10(n!) = log10(n*n-1*n-2......*2*1) = log10(n) + log10(n-1) + log10(n-2) + ...... + log10(2) + log10(1)
log10(100) = 2;
log10(200) = 2.301;
log10(1000) = 3;
log10(1500) = 3.176;
你能看出规律来了吗,呵呵,对头,就是这样子的。
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我没有什么雄心壮志,我只想给自己和关心自己的家人和朋友一个交代,仅此而已。