Can anyone tell what is the meaning of this error ?

Question

https://code.sololearn.com/cn4jG7xnNZTn/?ref=app

Answer 1

delay is not a command you can use in standard C

Answer 2

I didn't find a better solution so far. You could use the lib time.h to create a similar function yourself. But I still dont see the point of using a delay in a program...

Answer 3

any substitute ?

Answer 4

thanks