How to print and read custom data in C++.

ostream_istream_overload.cpp

#include <bits/stdc++.h>
using namespace std;

struct Point {
  int x, y;
};

ostream& operator<<(ostream& os, const Point& p) {
  return os << "(" << p.x << ", " << p.y << ")";
}

istream& operator>>(istream& is, Point& p) { return is >> p.x >> p.y; }

int main() {
  Point a, b;

  cin >> a >> b;

  cout << a << endl;
  cout << b << endl;
}