what if u had no weapons or ammo would u let them eat u or kill yourself first?

OR

what if u had all the weapons and ammo u could ask 4 do u run out and kill any thing u see or hide on a building and kill any thing u see?

To the first question, it depends. If you have no weapons or ammo, how would you kill yourself before they eat you?

For the second: The smarter thing to do would be to hide for the most part, still playing it safe. Even if you had all the weapons you want, the zombies could still overwhelm you.

but they cant climb so how could they reach u on a building

They can come through the inside of the building, up the stairs, and out to the roof, just like a human would do it.

Plus, what sense would it make to stay on top of a building and use the zombies as target practice? You would run out of food and water eventually.

1. Kill myself...imagine the pain you'd feel between the first bite and death. And being eaten alive is a slow process.

2. Hide...i'd be shit scared even if i had all the weapons. Plus i would want to save up in the times i need it. I would also try to escape.

ALL the weapons you could want?

In that case, blow up the internal stairs in the building with explosives. Then take the lifts up high and switch them all off. You'd be safe assuming there were no zombies in the building. Then its sniper time.