def findMinAndMax(L=None): if L is None or len(L) == 0: return None, None else: min = L[0] max = L[0] for l in L: if l < min: min = l if l > max: max = l return min, max
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def findMinAndMax(L=None): if L is None or len(L) == 0: return None, None else: min = L[0] max = L[0] for l in L: if l < min: min = l if l > max: max = l return min, max