keeping values of scanf

[n00by]

i was wondering if it is possible to have a scanf in a for loop and keep each value the user inputs? how can i store each value the user inputs?
i need to keep each value because the program takes input from the user and takes the derivative of the polynomial. now i am using a for loop but i don't know how to keep each value for the scanf. am i approaching this the wrong way? what can i do? here is the part of the code. (it repeats for as many values of "a" there is).

 
for(b = 0; b <= a; b++)
    {
    printf("Enter coefficient for x^%d: ", b);
    scanf("%d", &c);
    }

[Salem]

Make c an array

Then

scanf( "%d", &c[b] );