@[xuyufei123](/user/878589) 你把```i++```移到循环内的判断之前。
by ZZYX_18670145320 @ 2024-02-06 12:53:44
@[xuyufei123](/user/878589) 改成```
#include <bits/stdc++.h>
using namespace std;
int main() {
double b=0,cnt=2,s;
cin>>s;
for(int i=1;;i++){
b+=cnt;
if(b>=s){
cout<<i;
return 0;
}
cnt*=0.98;
}
return 0;
}
```
by miffy_123 @ 2024-02-06 13:18:20
```
#include <bits/stdc++.h>
using namespace std;
int main() {
double b=0,cnt=2,s;
cin>>s;
for(int i=1;;i++){
b+=cnt;
if(b>=s){
cout<<i;
return 0;
}
cnt*=0.98;
}
return 0;
}
```
by miffy_123 @ 2024-02-06 13:20:38
过了，谢谢！！！
by xuyufei123 @ 2024-02-07 12:13:34