python关于猴子吃桃问题

n = 1
for i in range(4,0,-1):
    n = (n+1)<<1   # (n+1)*(2**1)
print('原代码为:',end='')
print(n)



n = 1
for i in range(4,0,-1):
    n = (n+2)*(4/3)
print('改编代码为:',end='')
print(n)