Can I use apple warranty if I bought my iphone off the flea market?

I bought my iphone off the flea market. I discovered the rear camera is blurry. I want apple to fix it. I found that the phones 1 year warranty still hasn't expired. If I drop in will they fix the camera immedianty? Will it cost anything?

Unless if its stolen. But you need to buy it at a retailer or apple flea market won't help get a warranty cause they don't work iwth apple