A.x=y=100 B.d--; C.x+y; D.c=int(a+b);
A.n=(n*100+0.5)/100.0 B.m=n*100+0.5,n=m/100.0 C.n=n*100+0.5/100.0 D.n=(n/100+0.5)*100.0
A.3.500000 B.3 C.2.000000 D.3.000000