**正确**

#include <bits/stdc++.h>
using namespace std;
int main()
{
	int k,n=0;
	double s=0;
	cin>>k;
	while(s<=k*1.0)
	{
		s+=1.0/++n;
	}
	cout<<n;
	return 0;
}

**错误**

```cpp
#include <bits/stdc++.h>
using namespace std;
int main()
{
	int k,n=0;
	double s=0;
	cin>>k;
	while(s<=k*1.0)
	{
		s+=1.0/n++;
	}
	cout<<n;
	return 0;
}

要炸了