def findMinAndMax(L): if not L: return (None,None) max = min = L[0] for i in L: if max < i: max = i if min > i: min = i return (min,max)
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def findMinAndMax(L): if not L: return (None,None) max = min = L[0] for i in L: if max < i: max = i if min > i: min = i return (min,max)