求大佬，哪里错了只有60

#include<cstdio>
#include<iostream>
using namespace std;
int main()
{
    int k;
    float n=1,i=1;
    cin>>k;
    while(i<=k)
    {
        n++;
        i=i+1/n;
    }
    cout<<n;
    return 0;
}