$stO \ \huge dalao!$
by t162 @ 2019-03-28 18:01:35
您可以参考一下我的：
```cpp
#include <bits/stdc++.h>
using namespace std;
int main() {
double n,i=2,sum=0,count=0;
cin>>n;
while(sum<n) {
sum+=i;
count++;
i*=0.98;
}
cout<<count;
return 0;
}
```
by Eason_AC @ 2019-03-28 18:04:09
@[Bambusoideae](/space/show?uid=106140) 什么意思？
by Xiang_MR @ 2019-03-28 18:04:38
@[Eason_AC](/space/show?uid=112917) 你这个是用走了的路程比游的路程，感觉比我的那个要好的多，我理解了。谢谢！
by Xiang_MR @ 2019-03-28 18:07:26
@[项影v](/space/show?uid=190152) 甭谢
by Eason_AC @ 2019-03-28 19:02:42
@[项影v](/space/show?uid=190152)
# 如此大佬？
[请看他的个人空间](https://www.luogu.org/space/show?uid=190152)
by oistr @ 2019-03-28 19:03:31
@[zxp1863](/space/show?uid=180720)
# 如此大佬？
[请看他的个人空间](https://www.luogu.org/space/show?uid=180720)
by Yoo_ @ 2019-03-28 19:05:35
@[我的智商贼低](/space/show?uid=114677)
# 怎么了？？？
# 我又没说我大佬
by oistr @ 2019-03-28 19:10:11
？？
by ggzx1835 @ 2019-06-06 20:42:56