Reference library

Lists & loops

Iterate, transform, and combine sequences with readable loop patterns.

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Lists & loops easy

How to Build a Running Maximum List in Python

Compute a list where each element is the maximum of all numbers seen so far from an input list.

running-max iteration lists
Python 
def running_maximum(numbers):
    result = []
    current_max = float('-inf')
    for num in numbers:
        if num > current_max:
            current_max = num
        result.append(current_max)
    return result

if __name__ == "__main__":
    numbers = [3, 1, 4, 1, 5, 9, 2, 6]
    max_list = running_maximum(number…
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