#include <iostream>
#include <unordered_map>
#include <string>
// Define Point class
class Point {
private:
int x;
int y;
public:
Point(int x_, int y_) : x(x_), y(y_) {}
int getX() const { return x; }
int getY() const { return y; }
// Equality operator
bool operator==(const Point& other) const {
return x == other.x && y == other.y;
}
// toString equivalent
std::string toString() const {
return "(" + std::to_string(x) + ", " + std::to_string(y) + ")";
}
};
// Custom hash function for Point
struct PointHash {
std::size_t operator()(const Point& p) const {
return std::hash<int>()(p.getX()) ^ (std::hash<int>()(p.getY()) << 1);
}
};
int main() {
std::unordered_map<Point, std::string, PointHash> map;
map[Point(2, 7)] = "A";
map[Point(3, 6)] = "B";
map[Point(0, 0)] = "C";
for (const auto& entry : map) {
const Point& key = entry.first;
const std::string& value = entry.second;
std::cout << "x: " << key.getX() << ", y: " << key.getY() << " => " << value << std::endl;
}
}
/*
run:
x: 0, y: 0 => C
x: 3, y: 6 => B
x: 2, y: 7 => A
*/
