```c
#include<stdio.h>
int main()
{
int i=0;
double sum = 0, s = 2.0, x;
scanf("%lf", &x);
while(sum<x)
{
sum += s;
s = s * 0.98;
i++;
}
printf("%d", i);
return 0;
}
```
by Jerrlee✅ @ 2022-01-16 14:30:01
@[w3180756048](/user/630217) 您看一下可不可以过,`double` 读入应该是要用 lf 的
by Jerrlee✅ @ 2022-01-16 14:30:38
不想我,直接用cin(~~逃~~)
by lucas_jy @ 2022-01-16 14:38:16
@[w3180756048](/user/630217) 输入用cin吧
~~这我12月AC的~~
by van_Dijk @ 2022-01-16 14:49:48
@[Jerrlee✅](/user/367652) 过了,非常感谢大佬,没注意到。
by w3180756048 @ 2022-01-16 15:08:03