Polynorm

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<br /> <br /> <br />#include<iostream.h> <br />#include<stdio.h> <br />#include<string.h> <br />#include<conio.h> <br /> <br />class Polynorm <br />{ <br />private: <br />int bac; <br />double *hs; <br />public: <br />Polynorm(int n) <br />:bac(n) {hs=new double[bac+1];} <br />Polynorm(Polynorm &p) <br />:bac(p.bac){hs=new double[bac+1]; <br />memcpy(hs,p.hs,(bac+1)*sizeof(double)); <br />} <br />~Polynorm(){delete []hs;} <br />public: <br />double & operator[](int index){return hs[index];} <br />Polynorm operator+(Polynorm &p) <br />{ <br />Polynorm *p1=this,*p2=&p; <br />if(bac>p.bac){p1=p2;p2=this;} <br />Polynorm res(*p2); <br /> <br />for(int i=0;i<=p1->bac;i++) <br />res.hs[i]+=p1->hs[i]; <br />return res; <br />} <br />Polynorm operator-(double a) <br />{ <br />Polynorm res(*this); <br />res.hs[0]-=a; <br />return (res); <br />} <br />friend Polynorm operator*(double a,Polynorm &p) <br />{ <br />Polynorm res(p); <br />for(int i=0;i<=p.bac;i++) <br />res.hs[i]*=a; <br />return (res); <br />} <br />double operator()(double x) <br />{ <br />double res=hs[bac]; <br />for(int i=bac-1;i>=0;i--) <br />res=res*x+hs[i]; <br />return res; <br />} <br />}; <br /> <br />void main() <br />{ <br />double x=5; <br />double a=3; <br />int bacA,bacB; <br />cout<<"Nhap so bac cua da thuc A = "; <br />cin>>bacA; <br />cout<<"Nhap so bac cua da thuc B = "; <br />cin>>bacB; <br />Polynorm A(bacA),B(bacB); <br />cout<<"Nhap he so cho da thuc A.\n"; <br />for(int i=0;i<=bacA;i++) <br />{ <br />cout<<"HS["<<i<<"]=";cin>>A[i]; <br />} <br />cout<<"Nhap he so cho da thuc B.\n"; <br />for(int j=0;j<=bacB;j++) <br />{ <br />cout<<"HS["<<j<<"]=";cin>>B[j]; <br />} <br />cout<<"A[4] = "<<A[4]<<endl; <br />cout<<"A(5) = "<<A(x)<<endl; <br />Polynorm C=A+B; <br />Polynorm D=a*A; <br /> <br />cout<<"C=A+B"<<endl; <br />for(int k=0;k<=bacA||k<=bacB;k++) <br />{ <br />cout<<"C["<<k<<"] = "<<C[k]<<endl; <br />} <br /> <br />cout<<"D=a*A voi a=3"<<endl; <br />for(int l=0;l<=bacA;l++) <br />{ <br />cout<<"D["<<l<<"] = "<<D[l]<<endl; <br />} <br /> <br />getch(); <br />} <br />