set basic operations header

#pragma once
#include<iostream>
#include<vector>

using namespace std;
class setOp
{
public:
    setOp();
    ~setOp();

    static void print(vector<int>);

    static vector<int> Intersection(vector<int>, vector<int>);
    static vector<int> Union(vector<int>, vector<int>);
    static vector<int> Symmetric_difference(vector<int>, vector<int>);
    static vector<int> Relative_complement(vector<int>, vector<int>);

};