code:
include iostream
using namespace std;
int main() {
int n;
cin>>n;
int a[n];
int start=0,end=n-1;
int curr_sum=0;
for(int i=0;i<n;i++)
{
cout<<a[i]<<endl;
}
int given_sum;
cin>>given_sum;
while(start<end)
{
curr_sum=a[start]+a[end];
if(curr_sum<given_sum)
start++;
else if(curr_sum>given_sum)
end--;
else
{
cout<<a[start]<<" and "<<a[end];
start++;
end--;
}
}
}
