hdu1018 Big Number

思路：设x是a的位数，则x=log10(a) + 1；ios             因而，结果就是log10(t!)+1=log10(t) + log10(t-1) + ... + log10(2) + 1spa #include <iostream> #include <cmath> using namespace std; int main() { int n; cin>>n

>>阅读原文<<