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#include<iostream.h> classcomplex {private: intr; inti; public: complex(){}; voidinput() {cin>>r>>i;} complexoperator+(complext); complexoperator-(complext); voidoutput(); }; complexcomplex::operator+(complext) {complexz; z.r=this->r+t.r; z.i=this->i+t.i; returnz; } complexcomplex::operator-(complext) {complexz; z.r=this->r-t.r; z.i=this->i-t.i; returnz; } voidcomplex::output() { if((this->i)>0) cout<<"c"<<"="<<r<<"+"<<i<<"i"<<endl; else cout<<"c"<<"="<<r<<"-"<<i*(-1)<<"i"<<endl; } #include<iostream.h> #include"complex2.h" voidmain() {complexa,b,c; a.input(); b.input(); c=a+b; c.output(); c=a-b; c.output(); }