cdehguiw @ 2017-09-29 14:37:31
#include<bits/stdc++.h>
using namespace std;
int main()
{
int k,n;
int i;
n=0;
i=0;
cin>>k;
while(n<=k)
{
i++;
n=n+1.0/i;
}
cout<<i<<endl;
return 0;
}
by YanYH @ 2017-09-29 14:43:31
把int改成long double 就行了