The correct answer to this open question is the following.
So being that the case and understanding the context of the situation, what I would do is the following.
First. I would analyze my supplies, the number of goods I have to see how much I can share. Then, the second consideration would be the most urgent necessities, for instance, water. The next consideration would be the people who need it: the elderly, children, people with a disease.
So if I have more medicines, I would give it to people who have a disease. If its clothes, I would give them to the poor. If its water, I would split my bottles trying to reach most of the people.
So in conclusion, I would establish priorities depending on the necessities of the ones in need.