Input

Question

char a = getchar();
getchar();
// call getchar() again to consume the line break character that came from pressing {Enter} key or whitespace from {Spacebar}
char b = getchar();

Answer 1

If your just getting a single char use getc(stdin)

int main(void) {
int a, b;
a = getc(stdin);
b = getc(stdin);
... do stuff with your char variables
}