if len(L) != 0:
min,max = L[0],L[0]
for s in L:
if s < min:
min = s
if s > max:
max = s
return(min,max)
else:
return (None, None)
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Roger_R36
if len(L) != 0:
min,max = L[0],L[0]
for s in L:
if s < min:
min = s
if s > max:
max = s
return(min,max)
else:
return (None, None)