We all know that a **linear search** is a search algorithm. The implementation code of this algorithm is everywhere. But I want to organize this on my site.

## The complexity of this algorithm.

**Worst Complexity:** O(n)**Average Complexity:** O(n)**Best Complexity:** O(1)**Space Complexity:** O(1)

def search(lst, n): for i in range(len(lst)): if lst[i] == n: return i break return None print(search([15, 225, 122, 10, 25, 32, 99, 100, 11, 5], 10)) # Result = 3

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