markdown格式没用对

```cpp
#include <iostream>
using namespace std;
int main(){
    freopen("A+B.in","r",stdin);
    freopen("A+B.out","w",stdout);
    
    int a,b;
    cin >> a >> b;
    cout << a+b;
    
    fclose(stdin);
    fclose(stdout);
    return 0;
}
```


#include <iostream>
using namespace std;
int main(){
    freopen("A+B.in","r",stdin);
    freopen("A+B.out","w",stdout);
    
    int a,b;
    cin >> a >> b;
    cout << a+b;
    
    fclose(stdin);
    fclose(stdout);
    return 0;
}


A+B problem (文件判题测试）

题解

#include <iostream>
using namespace std;
int main(){
freopen("A+B.in","r",stdin);
freopen("A+B.out","w",stdout);

}

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