I need an answer at the earliest.

1. (12-09-2022) Let us assume that the President of Indian went to somewhere to attend some programme. There he was served n number of food items in lunch. For the safety reason of the President, the food items are to be tested by sniffer dogs. The bodyguards found that one criminal poisoned only one food item but which one they don't know. The sniffer dogs can detect poison by smelling but here we assume the food items are to be consumed. Another condition that the poison works very slowly; it takes one month for the animal to die. A little part of the poisoned food is suffcient to kill an animal. Our job is to find that particular food item by killing at most O(logn) dogs