我也是
by lianghaofeng @ 2023-01-23 15:25:39
```c
#include <bits/stdc++.h>
using namespace std;
double meter=7,s,x,l,r,now=0;
int main()
{
cin>>s>>x;
l=s-x;
r=s+x;
for(;;)
{
if (now>r)
{
cout<<'n';
return 0;
}
if(l<=now&&now<=r)
{
if(now+meter>r)
{
cout<<'n';
return 0;
}
else
{
cout<<'y';
return 0;
}
}
now+=meter;
meter*=0.98;
}
return 0;
}
```
```
by lucas_777 @ 2023-02-03 19:15:50