Pryamaya

#include <iostream>
#include <string>
#include <list>
#include <algorithm>
#include <cmath>
#include <vector>
using namespace std;
struct Point
{
    double x,y;
};
struct Line
{
    double a,b,c;
};
void LineFromTwoPoints(Point a, Point b)
{
    Line l;
    l.a = (b.y - a.y) / (b.x - a.x);
    l.b = 1;
    l.c = b.y - l.a * b.x;
    cout << "y = " << l.a << "x + " << l.c;
}
bool isPointOnLine(Point m, Line n)
{
    return (n.a*m.x + n.b*m.y + n.c == 0);
}

int main()
{
    Point m;
    Line n;
    cin >> m.x >> m.y >> n.a >> n.b >> n.c;
    cout << (isPointOnLine(m, n) ? "Yes\n" : "No\n");

    Point A, B;
    cin >> A.x >> A.y >> B.x >> B.y;
    LineFromTwoPoints(A,B);
}