Untitled

class Polynomial {
    public:
    int *degCoeff; 
    int capacity;
    
    Polynomial(){
        this->degCoeff=new int[6];
        this->capacity=5;
    }

    Polynomial (int capacity){
        this->degCoeff=new int[capacity+1];
        this->capacity=capacity;
    }
    
    Polynomial (Polynomial const &p){
        int *newdeg=new int[p.capacity+1];
        for(int i=0;i<=p.capacity;i++)
            newdeg[i]=p.degCoeff[i];
        this->degCoeff=newdeg;
        this->capacity=p.capacity;
    }
    
    void setCoefficient(int deg,int coef){
        if(deg>capacity){
            int newcapacity=deg;
            int *newdeg=new int[newcapacity+1];
            for(int i=0;i<=capacity;i++)
                newdeg[i]=degCoeff[i];
            this->degCoeff=newdeg;
            this->capacity=newcapacity;
            degCoeff[deg]=coef;
        }
        else{
            degCoeff[deg]=coef;
        }
    }
    
    Polynomial operator+(Polynomial const &P2){
        int newcap=max(this->capacity,P2.capacity);
        Polynomial P3(newcap);
        for(int i=0;i<=newcap;i++){
            if(i<=capacity && i<=P2.capacity)
                P3.degCoeff[i]=this->degCoeff[i]+P2.degCoeff[i];
            else if(i<=capacity)
                P3.degCoeff[i]=this->degCoeff[i];
            else 
                P3.degCoeff[i]=P2.degCoeff[i];
        }
        return P3;
    }
    
    Polynomial operator-(Polynomial const &P2){
        int newcap=max(this->capacity,P2.capacity);
        Polynomial P3(newcap);
        for(int i=0;i<=newcap;i++){
            if(i<=capacity && i<=P2.capacity)
                P3.degCoeff[i]=this->degCoeff[i]-P2.degCoeff[i];
            else if(i<=capacity)
                P3.degCoeff[i]=this->degCoeff[i];
            else 
                P3.degCoeff[i]=-P2.degCoeff[i];
        }
        return P3;
    }
    
    Polynomial operator*(Polynomial const &P2){
        int newcap=this->capacity+P2.capacity;
        Polynomial P3(newcap);
        for(int i=0;i<=this->capacity;i++){
            for(int j=0;j<=P2.capacity;j++){
                P3.degCoeff[i+j]+=this->degCoeff[i]*P2.degCoeff[j];
            }
        }
        return P3;
    }
    
    void operator=(Polynomial const &p){
        int *newdeg=new int[p.capacity+1];
        for(int i=0;i<p.capacity;i++)
            newdeg[i]=p.degCoeff[i];
        this->degCoeff=newdeg;
        this->capacity=p.capacity;
    }
    
    void print(){
        for(int i=0;i<=this->capacity;i++){
            if(degCoeff[i]!=0)
                cout<<degCoeff[i]<<"x"<<i<<" ";
        }
        cout<<endl;
    }
           
};