kn15_lb9var6

#include "stdafx.h"
#include <stdlib.h>
#include <iostream>
#include "conio.h"
#include "time.h"
#pragma warning(disable: 4996)
int main()
{
    setlocale(LC_ALL, "Russian");
    srand(time(NULL));

    float x[300], y[300];
    int m;
    float dx, dy;
    int  count=0;
    float t1, t2;
    printf("Количество точек\n");
    scanf("%d", &m);
    printf("X Для D\n");
    scanf("%f", &dx);
    printf("Y Для D\n");
    scanf("%f", &dy);
    for (int i = 0; i < m; i++)
    {
        x[i] = rand() % 10;
        y[i] = rand() % 10;


    }
    for (int i = 0; i < m; i++)
    {
        for (int j = 0; j < m; j++)
        {
            if (i != j)
            {
                if (x[i] == dx && dx == x[j]) count++;
                else if (y[i] == dy && dy == y[j]) count++;
                else
                {
                    t1 = (dy - y[i]) / (y[j] - y[i]);
                    t2 = (dx - x[i]) / (x[j] - x[i]);
                    if (t1 == t2) count++;
                }
            }
        }
    }
    printf("___________\n");
    printf("X     Y    \n");
    printf("___________\n");
    for (int i = 0; i < m; i++)
        printf("%.1f  %.1f\n", x[i],y[i]);

    printf("\n Кол-во прямых проходящих через 2 точки множества А и точку D %d", count);
    _getch();
    return 0;
}