@[EkSulfur](/user/1054137)
yn函数写成这样：
```cpp
int a=0;
if (x % 4 == 0&&x%100!=0||x%400==0)
a =!a;
return a;
```
by Use_Imagination @ 2023-08-18 23:12:01
```c
#include <bits/stdc++.h>
using namespace std;
int main()
{
int x, y;
cin >> x >> y;
int cnt = 0;
for (int i = x; i <= y; i++)
{
if (i % 400 == 0 || i % 100 != 0 && i % 4 == 0)
{
cnt++;
}
}
cout << cnt << endl;
for (int i = x; i <= y; i++)
{
if (i % 400 == 0 || i % 100 != 0 && i % 4 == 0)
cout << i << " ";
}
return 0;
}
```
by wzj0829 @ 2023-08-18 23:15:16
@[EkSulfur](/user/1054137) 可以看看我的
```cpp
#include<bits/stdc++.h>
using namespace std;
bool r(long long i){
if(i%4==0 && i%100!=0 || i%400==0 && i%3200!=0) return 1;
else return 0;
}
int main()
{
ios::sync_with_stdio(false);
cin.tie(0), cout.tie(0);
long long x,y,a=0;
cin>>x>>y;
for(int i=x;i<=y;++i){
if(r(i)) a++;
}
cout<<a<<endl;
for(int j=x;j<=y;++j){
if(r(j)) cout<<j<<" ";
}
return 0;
}
```
by FurippuWRY @ 2023-08-19 00:45:19
感谢
by EkSulfur @ 2023-08-21 18:42:36