c ++中的距离计算错误

#include<iostream>
#include <cmath>

int main() {
    double x1, y1, x2, y2;
    std::cout << "Enter the coordinates of point 1 (x1, y1): ";
    std::cin >> x1 >> y1;
    std::cout << "Enter the coordinates of point 2 (x2, y2): ";
    std::cin >> x2 >> y2;

    double distance = std::sqrt(std::pow((x2 - x1), 2) + std::pow((y2 - y1), 2));
    std::cout << "The distance between the two points is: "<< distance<< std::endl;

    return 0;
}