digit « string « C Array Q&A

1. Multiplying two number arrays    stackoverflow.com

Can anyone please tell me how to multiply two number arrays in C? The number arrays are basically derived from two strings containing digits. eg: 123456 and 132465. Edit: I had two ...

2. In C, how do I check if a String contains 2 digits, 1 letter and 4 digits?    stackoverflow.com

In the method I've tried this:

int 1, 2, 4, 5, 6, 7;
char 3;
char display[10];

scanf("%d%d%c%d%d%d%d", &1, &2, &3, &4, &5, &6, &7);
display = {1, 2, 3, 4, 5, 6, 7};