xiaohy_cd @ 2024-08-06 15:26:35

#include <bits/stdc++.h>
using namespace std;
int main()
{
    double a=1;
    int n=2,k;
    cin >> k;
    for(int i=2;a<=k;i++)
    {
        a+=1/k;
    }
    cout << a;
}

by lintianhong @ 2024-08-06 16:01:33

不谢

by caizhiyan @ 2024-08-06 16:06:27

@xiaohy_cd sorry 搞错了AC代码已附上

by guoyanwei120223 @ 2024-08-13 17:15:39

这样写

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

求关