Max Sum Slice Python 5 - Autopilot

def max_sum_slice(xs):
    if not xs:
        return 0

    current_max = 0
    max_so_far = 0

    for x in xs:
        current_max = max(0, current_max + x)
        max_so_far = max(max_so_far, current_max)

    return max_so_far
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