列一个长·············的表格

既然是数列，那就一个一个列吧，反正AC了。

#include<iostream>
using namespace std;int main(){int n;cin>>n;int a[47]{0,1,1,2,3,5,8,13,21,34,55,89,144,233,377,610,987,1597,2584,4181,6765,10946,17711,28657,46368,75025,121393,196418,317811,514229,832040,1346269,2178309,3524578,5702887,9227465,14930352,24157817,39088169,63245986,102334155,165580141,267914296,433494437,701408733,1134903170,1836311903};printf("%.2f",a[n]*1.0);}