The answer
In Python, you should use float('-inf') to represent negative infinity, and float('inf') to represent positive infinity.
Understanding Variable Initialization (MIN_VALUE)
How do you initialize variables in Python for extreme values?
More FAQs in Understanding Variable Initialization (MIN_VALUE)
If the dataset contains only negative numbers, 0 will incorrectly be returned as the maximum, even though it doesn't exist in the data.
It is a constant representing the smallest possible value a 32-bit integer can hold (-2,147,483,648). It is the perfect starting point for finding maximums.
Yes (e.g., max = arr[0]), but you must verify that the array is not empty first; otherwise, accessing arr[0] will crash the program.
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