#The first question
def normalize(name): return name[0].upper()+name[1:].lower()
#The second question
def prod(L): def multip(x, y): return x * y return reduce(multip, L)
#The third question
def str2float(s): s0,s1 = s.split('.') DIGITS = {'0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8, '9': 9} def fn(x, y): return x * 10 + y def char2num(s): return DIGITS[s] return reduce(fn, map(char2num, s0))+(reduce(fn, map(char2num, s1))/10**len(s1))
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用户6757938931
#The first question
#The second question
#The third question