def pai(n):
lie = list(map(lambda x:2*x+1,range(n)))
jishu = lie[::2]
oushu = lie[1::2]
return sum(map(lambda x:4/x,jishu))-sum(map(lambda x:4/x,oushu))
Sign in to make a reply
掰掰
def pai(n):
lie = list(map(lambda x:2*x+1,range(n)))
jishu = lie[::2]
oushu = lie[1::2]
return sum(map(lambda x:4/x,jishu))-sum(map(lambda x:4/x,oushu))