def findMinAndMax(L):
if L ==[]:
return None,None
min = max = L[-1]
for n in L[:-1]:
if n<=min:
min = n
if n>=max:
max=n
return min,max
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世代相传的锅盖头
def findMinAndMax(L):
if L ==[]:
return None,None
min = max = L[-1]
for n in L[:-1]:
if n<=min:
min = n
if n>=max:
max=n
return min,max