Question

scanf("%d",&n) what does this means?

Answer 1

this means get the value from the input stream

Answer 2

value of n

Answer 3

scanf() gets input in a certain format. "%d" is a mask for integers. &n is the address of a variable named n. Check out scanf and printf.

Answer 4

scanf() is a function that receives input from the keyboard and stores the input in a variable. %d is a mask for integers and &n is the address for the variable like rsmith6559 said.
In other words you are going to read an integer and store it in the variable n.

Answer 5

@tricia100609
scanf(%d,&n) means: to get a integer{i.e %d} from user{work of scanf()} and to save the value at the address of"n"{work of &n}.