lesson_1010

#include <iostream>

using namespace std;
struct Point;

struct Point {
    int x;
    int y;

    void construct(int x1, int y1) {
        x = x1;
        y = y1;
    }

    void show_in() {
        cout << "(" << x << ", " << y << ")" << endl;
    }

    double dist_in(const Point& pt2) {
        int dx = pt2.x - x;
        int dy = pt2.y - y;
        double res = dx * dx + dy * dy;
        return sqrt(res);
    }
};

struct Line {
    Point pt1;
    Point pt2;

    void show() {
        /*pt1.show_in();
        pt2.show_in();*/
        cout << "line{" << pt1.x << ", " << pt1.y << ", "
            << pt2.x << ", " << pt2.y << "}" << endl;
    }
};

struct ZigZag {
    Point pnts[10];

    void show() {
        for (int k = 0; k < 10; k++) {
            cout << pnts[k].x << ", " << pnts[k].y << "| ";
        }
        cout << endl;
    }
};

void show(const Point& pt) {
    cout << "(" << pt.x << ", "
        << pt.y << ")" << endl;
}

double dist(const Point& pt1, const Point& pt2) {
    int dx = pt2.x - pt1.x;
    int dy = pt2.y - pt1.y;
    double res = dx * dx + dy * dy;
    return sqrt(res);
}

void show(Point pnts[], int size) {
    for (int k = 0; k < size; k++) {
        show(pnts[k]);
    }
}

struct Man {
    string name;
    int cash;
};

int num_names = 7;
const string names[]{"Ivan", "Artem", "Anna", "Oleg", "Sema", "Lena", "Igor"};

struct Bus {
    Man pasangers[10];

    void construct() {
        /*
        pasangers[0].name = new char[] {"Artem Igorevich Sebastiyanov"};
        pasangers[1].name = new char[] {"P2"};
        pasangers[2].name = new char[] {"P3"};
        pasangers[3].name = new char[] {"P4"};
        pasangers[4].name = new char[] {"P5"};
        pasangers[5].name = new char[] {"P6"};
        pasangers[6].name = new char[] {"P7"};
        pasangers[7].name = new char[] {"P8"};
        pasangers[8].name = new char[] {"P9"};
        pasangers[9].name = new char[] {"P10"};
    */

        for (int k = 0; k < 10; k++) {
            pasangers[k].name = names[rand() % num_names];
            pasangers[k].cash = 32;
        }

        pasangers[2].cash = 16;
        pasangers[7].cash = 16;
    }

    void show() {
        for (int k = 0; k < 10; k++) {
            cout << pasangers[k].name << " "
                 << pasangers[k].cash << " rub." << endl;
        }
    }

    void destruct() {/*
        for (int k = 0; k < 10; k++) {
            delete[] pasangers[k].name;
        }
        */
    }
};


void test_Point() {
    Point pt1{ 12, -5 };
    Point pt2;

    pt2.x = 45;
    pt2.y = 12;

    Point pnts[]{ pt1, pt2 };

    show(pt1);
    show(pt2);

    cout << "dist: "
        << dist(pt1, pt2) << endl;

    pnts[1].x = 15;
    show(pnts, 2);
    cout << "-----------------" << endl;
    pt1.show_in();
    cout << "dist: " << pt1.dist_in(pt2) << endl;
}


void test_Line() {
    Point pt1{ 12, -5 };
    Point pt2;
    pt2.x = 45;
    pt2.y = 12;

    Line line{ pt1, pt2 };
    line.show();

    line.pt1.x += 10;
    line.pt2.x -= 10;
    line.show();
}

void test_ZigZag() {
    ZigZag point_array;
    for (int k = 0; k < 10; k++) {
        point_array.pnts[k].x = k;
        point_array.pnts[k].y = 10 - k;
    }
    point_array.show();
}

void main(){
    Bus bus65;
    bus65.construct();
    bus65.show();
    bus65.destruct();
}