Computer Science: How should I write this code in C$++?$

Needs to result in the following output:

c$3=5+0$i

c$4=(0+0$i$)$

c$3=(-3+8$i$)+(-15-20$i$)=-18-12$i

c$3=(-3+8$i$)-(-15-20$i$)=12+28$i

c$3=(-3+8$i$)$ x $(-15-20$i$)=205-60$i

c$3=(-3+8$i$)/(-15-20$i$)=-0\mathrm{.}184-0\mathrm{.}288$i

DIVIDE BY ZERO ERROR!!!

c$3=(-3+8$i$)/(0+0$i$)=$ undefine

Modulus of c$1=8\mathrm{.}544$

c$1=-3+8$i

c$2=-15-20$i

c$1$ is not equal to c$2$

c$1=-3+8$i

c$2=-3+8$i

c$1$ is equal to c