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Linear Search
In computer science, linear search or sequential search is a
method for finding a target value within a list. It sequentially
checks each element of the list for the target value until a
match is found or until all the elements have been searched.
Linear search runs in at worst linear time and makes at most n
comparisons, where n is the length of the list.
Complexity
Time Complexity: O(n) - since in worst case we're checking each element
exactly once.