题解 | 牛牛学数列2
牛牛学数列2
https://www.nowcoder.com/practice/fc72951f52984f3abd286d82eeffacba?tpId=383&tqId=310693&channelPut=tracker1
#include <bits/stdc++.h>
using namespace std;
int main() {
int n;
float H=0.0;
cin>>n;
for(int i=1;i<=n;i++){
float k=1.0/i;
H+=k;
}
cout<<H;
}
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