scanf returns random character

Hi all,

I am trying to run a simple program in order to learn c but the scanf gives me some trouble.

Below is the code:

Code:

    int count,num,total;
    
    for (count = 1; count < 7;count++) {
        printf("Num %d:",count);
        scanf("%d",num);
        printf("%d\n",num);
        total = total + num;     
    }
    printf("total is:%d\n",total);
    char ch;
    
    scanf("%d",ch);

now whenever i run the code, and give 1 as input, the printf statement which is inside the loop gives me this number: 2621256.

Could someone please explain me what it this number?

Kind Regards,
Ioannis

that's the garbage that was in num when you started the program, you need to do
scanf("%d", &num);

also, total = total + num is the same as total += num

this is a very quick reply i have to say
thanks very much honestly.

one more question .

why the print of total at the end of the code prints 15727538 instead of 15727536 which is the actual sum?

again thanks a lot for your help.

Regards,
Ioannis

Originally Posted by giannisapi

this is a very quick reply i have to say
thanks very much honestly.

one more question .

why the print of total at the end of the code prints 15727538 instead of 15727536 which is the actual sum?

again thanks a lot for your help.

Regards,
Ioannis

because total contains the garbage that was in it when you started the program, total = total + sum
set total to 0 before you use it