How to read numbers separated by space using scanf

Question

I want to read numbers(integer type) separated by spaces using scanf() function. I have read the following:

• C, reading multiple numbers from single input line (scanf?)
• how to read scanf with spaces

It doesn't help me much.

How can I read numbers with space as delimiter. For e.g. I have following numbers as input 2 5 7 4 3 8 18 now I want to store these in different variables. Please help.

Answer 1

I think by default values read by scanf with space/enter. Well you can provide space between '%d' if you are printing integers. Also same for other cases.

scanf("%d %d %d", &var1, &var2, &var3); 

Similarly if you want to read comma separated values use :

scanf("%d,%d,%d", &var1, &var2, &var3); 

Answer 2

scanf uses any whitespace as a delimiter, so if you just say scanf("%d", &var) it will skip any whitespace and then read an integer (digits up to the next non-digit) and nothing more.

Note that whitespace is any whitespace -- spaces, tabs, newlines, or carriage returns. Any of those are whitespace and any one or more of them will serve to delimit successive integers.