#include <iostream>
#include <cmath>

int main() {
    double x = 3.0;
    double y = 4.0;

    // 计算两个数的欧几里德范数（即两点之间的距离）
    double distance = hypot(x, y);

    // 输出结果
    std::cout << "Distance between points (" << x << ", " << y << ") is: " << distance << std::endl;

    return 0;
}