Question

I need to take a 4 digit input from stdin in C such as 1234, and store the numbers separately like 1, 2, 3, 4. How could I do this?

Answer 1

Read it as a string (char*). Pseudocode

char str[MaxLen];
Input str;
possibly do some checking that the input string is in required format.
int a0 = str[0] - '0';
int a1 = str[1] - '0';
etc.