Removing the Smallest Number - Problem Solution

Explore three ways to remove the smallest number from a list of integers.

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def solution(arr):
    if not arr or len(arr) <= 1: # If list is empty or has only one element
        return [-1]              # Return [-1]
    arr.remove(min(arr))         # Remove the smallest number
    return arr

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result = solution([4, 3, 2, 1])
print(result)  # Output: [4, 3, 2]

result = solution([10])
print(result)  # Output: [-1]

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