everest% cc scan4.c everest% everest% a.out Enter an integer: 3 r = 1 c = 3 Enter an integer: 4 r = 1 d = 4 everest% everest% a.out Enter an integer: 3 4 r = 1 c = 3 Enter an integer: r = 1 d = 4 everest% everest% a.out Enter an integer: abc r = 0 c = 0 Enter an integer: r = 0 d = 0 everest%