cobraa/diagonal matrix.cpp at main · CallMeChid/cobraa · GitHub

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#include<iostream>
using namespace std;

class Diagonal
{
    private:
        int *A;
        int n;
    public:
        Diagonal()
        {
            n=2;
            A = new int[2];
        }
        Diagonal(int n)
        {
            this->n=n;
            A = new int[n];
        }
        ~Diagonal()
        {
            delete []A;
        }
        void set(int i,int j, int x);
        int get(int i, int j);
        void Display();
};
void Diagonal :: set(int i,int j, int x)
{
    if(i==j)
    {
        A[i-1]=x;
    }
}
int Diagonal :: get(int i, int j)
{
    if(i==j)
    {
        return A[i-1];
    }
    return 0;
}

void Diagonal :: Display()
{
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++)
        {
            if(i==j){
                cout<<A[i]<<" ";
            }
            else{
                cout<<"0"<<" ";
            }
        }
        cout<<endl;
    }
}

int main()
{
    Diagonal d(4);

    d.set(1,1,5);
    d.set(2,2,4);
    d.set(3,3,2);
    d.set(4,4,3);

    d.Display();
    return 0;
}