10扩展. 矩阵覆盖
矩形覆盖
http://www.nowcoder.com/questionTerminal/72a5a919508a4251859fb2cfb987a0e6
每个小矩阵可以横着放或者竖着放，所以依然是斐波那契数列
if number == 0:
return 0
res = [1,2]
for i in range(2,number):
res.append(res[i-1]+res[i-2])
return res[number-1]
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