I remember doing this problem in junior high school, as if it should be like this:

Li Bai walked around the streets with nothing to do, carrying a pot to buy wine.

Double it when you meet a store, and have a drink when you see flowers.

I met the shop flower three times and drank all the wine in the pot.

May I ask how much wine is in this pot?

If you think backwards, this problem can be easily solved:

There was wine in the pot before the third flower meeting: 0+ 1= 1 (barrel)

There was wine in the pot before the third encounter: 1÷2= 1/2 (barrel)

There was wine in the pot before the second flower show:1/2+1=1(1/2) (barrel)

There was wine in the pot before the second encounter: 1( 1/2)÷2=3/4 (barrel)

There was wine in the pot before I met the flower for the first time: 3/4+ 1= 1(3/4) (barrel)

There was wine in the pot before I met the store for the first time: 1(3/4)÷2=7/8 (barrel)

Column synthesis:

[(1÷ 2+1) ÷ 2+1] ÷ 2 = 7/8 (barrel)

At that time, I was thinking that if I did it right, Li Bai must have taken a jar. ....