Bitwise Or vs LCM(牛客)

#include
using namespace std;
const int N=2e5+10,M=1e6+10;
int a[N],n, b[M],ans1,ans2;
int main()
{

    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
        if(b[a[i]]){cout<