8 Jan 2023
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Document Summary
This problem can be solved using a polynomial-time algorithm. We can use the greedy approach to solve this problem. The total number of cameras selected is the minimum number of cameras required. Let n be the number of aisles in the store. We start with the first aisle and select the camera for it. We then move to the second aisle and check if the camera from the first aisle can cover it. We continue this process till we have gone through all the aisles. For example, if the store has 5 aisles: Aisle 1: we select a camera for this aisle. Aisle 2: we check if the camera from the first aisle can cover this aisle. Aisle 3: we check if the camera from the first aisle or the second aisle can cover this aisle. Aisle 4: we check if the camera from any of the previous aisles can cover this aisle.
