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第三题

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风卷残雪yu

#1 Created at ... [Delete] [Delete and Lock User] 
def f1(x,y):
    return x*10+y
def f2(x,y):
    return x*10+y
def char2num(s):
    return {'0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8, '9': 9}[s]
L = s.split('.')
return reduce(f1,map(char2num,L[0]))+reduce(f2,map(char2num,L[1]))/(10**len(L[1]))
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