@[ZZYX_18670145320](/user/1192648)
```cpp
#include<bits/stdc++.h>
using namespace std;
long long a,b,n = 0,num[1000000];
int main(){
cin >> a >> b;
for (long long i = a;i <= b;i++){
if ((i % 400 == 0) || (i % 4 == 0 && i % 100 != 0)){
n++;
num[n] = i;
}
}
cout << n << endl;
for (long long i = 1;i <= n;i++){
cout << num[i] << " ";
}
}
```
by Li_Feiy @ 2024-02-03 18:23:40
@[ZZYX_18670145320](/user/1192648) 数组过大要放main函数外面，n是从1开始记录的
by Li_Feiy @ 2024-02-03 18:24:39
@[Li_Feiy](/user/941431) 哦，谢谢
by ZZYX_18670145320 @ 2024-02-03 18:25:58