CodePudding user response:

This step negative zha do not quite understand why belt is a [8]

CodePudding user response:

List the index began from 0, if the number is 1-9, then a [8] is 9.

CodePudding user response:

Is negative, since the last and bai

CodePudding user response:

Negative, is to reverse the output, the step length of 1 is the list of inside