if L == []:
return (None, None)
Min = L[0]
Max = L[0]
for num in L:
Min = min(Min, num)
Max = max(Max, num)
return (Min, Max)
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11点提前睡觉
if L == []:
return (None, None)
Min = L[0]
Max = L[0]
for num in L:
Min = min(Min, num)
Max = max(Max, num)
return (Min, Max)