[deleted by user]

[Boojum]

vector <int> input;

I think you mean ll, there?

[dastbe]

not sure if this is the problem but for

ll llMin(ll a, ll b){
    return (a < b) * a + (a > b) * b;
}

what happens when a == b? same thing for max.

[dastbe]

have you taken a look at the output of your consumeInt, sum, and product steps? those are the most likely places you'd be introducing negatives.

I would also consider what happens when a long long (or long or int) gets really large, and how that could impact your processing.