How can I write a array of complex number?

I want to write a code that takes a sequence of complex numbers and searches for a number in it. But I don’t know how to write a function to form the sequence. may you help?

class complex{  
private:
    int real;
    int image; 
    int n;
    int *a;
    
    public:
        
        complex (float l,float k) : real(l),image(k){}
        
        float set(float l,float k)
        {
            cout<<"enter size of array: ";
            cin>>n;
            for (int i=0;i<n;i++)
            {
                cout<<"enter real part: ";
                cin>>l;
                cout<<"enter image part: ";
                cin>>k;
                *(a+i)=complex(l,k);
            }
        }
};

>Solution :

We can use std::complex instead of creating our own datatype. The other problem is that a is undefined as is and why not just use a[i]. Also instead why not create a typical array? You also dont need arguments or a return type for your function.

Something like:

class complexArray{  
    private:
        int n;
        std::complex* a;
    
    public:        
        void set()
        {
            cout << "enter size of array: ";
            cin >> n;
            a = new std::complex[n];
            for (int i = 0; i < n; i++)
            {
                float real;
                float image;
                cout << "enter real part: ";
                cin >> real;
                cout << "enter image part: ";
                cin >> image;
                a[i] = std::complex(real, image);
            }
        }
};