```c
#include <iostream>
#include <iomanip>
using namespace std;
bool runnian(int n){
int i=0;
if(n%100==0){
if(n%400==0)i=1;
}
else if(n%4==0) i=1;
return (i==1);
}
int main() {
int a,b,js=0;
cin>>a>>b;
for(int i=a;i<=b;i++){
if(runnian(i)){
js++;
}
}
cout<<js<<endl;
for(int i=a;i<=b;i++){
if(runnian(i)){
cout<<i<<" ";
}
}
return 0;
}
```
@[13368160702mo](/user/1316920)
~~顺便说一句，js要全局变量~~
by LHM_zs @ 2024-05-29 16:40:55
@[LHM_zs](/user/1024294) 谢谢
by 13368160702mo @ 2024-05-29 16:46:51