小编Cod*_*ody的帖子

我创建了一个计算两点之间距离的程序,并找到了斜率.

1)我如何将程序更改为严格指针？

2)无论输入什么,距离函数都返回"-1".我100%肯定我的算法是正确的,但似乎出现了问题.

 // This program computes the distance between two points
 // and the slope of the line passing through these two points.

    #include<iostream>
    #include<iomanip>
    #include<cmath>
    using namespace std;

    struct Point
    {
        double x;
        double y;
    };

    double distance(Point &p1, Point &p2);
    double slope(Point &p1, Point &p2);

    int main()
    {
        Point p1, p2;
        char flag = 'y';
        cout << fixed << setprecision(2);
        while(flag == 'y' || flag == 'Y')
        {
            cout << "First x value: "; cin >> p1.x; …