CodePudding user response:
This is the design of y -, do things first, -- againCodePudding user response:
Rear + + or -, it is the original number first, then the increase (the decrement) like this while (y -!=1), first determine y!=1, and y -, next time cycle, y is the value, after -CodePudding user response:
To determine (y) the overall compared with 1, then calculate -,