```cpp
#include<stdio.h>
int main()
{
double x,k=2,s=0;
scanf("%lf",&x);
// cin>>x;
int m=0;//s为走了的总距离
while(x>s){
s+=k;
k=k*98.0/100.0;
m++;
}
printf("%d",m);
return 0;
}
```
by Yizhixiaoyun @ 2022-09-16 18:26:56
这样就过了
by Yizhixiaoyun @ 2022-09-16 18:27:21
@[zhazhaqi77](/user/798029)
楼上正解
by WA_sir @ 2022-09-16 18:35:45
@[Yizhixiaoyun](/user/590864) 所以就是double s的问题我哭死；谢谢您！
by zhazhaqi77 @ 2022-09-18 14:23:27