This is a C++ Program to check whether points are colinear or not.

Here is source code of the C++ Program to Check Whether a Given Points are Colinear or Not. The C++ program is successfully compiled and run on a Linux system. The program output is also shown below.

`#include <iostream>`

`#include <time.h>`

`#include <stdlib.h>`

using namespace std;

const int LOW = 1;

const int HIGH = 10;

int main(int argc, char **argv)

`{`

int x, y, x1, x2, y1, y2;

time_t seconds;

time(&seconds);

srand((unsigned int) seconds);

x = rand() % (HIGH - LOW + 1) + LOW;

y = rand() % (HIGH - LOW + 1) + LOW;

x1 = rand() % (HIGH - LOW + 1) + LOW;

x2 = rand() % (HIGH - LOW + 1) + LOW;

y1 = rand() % (HIGH - LOW + 1) + LOW;

y2 = rand() % (HIGH - LOW + 1) + LOW;

cout << "The points are: (" << x << ", " << y << "), (" << x1 << ", " << y1

<< "), & (" << x2 << ", " << y2 << ")\n";

cout << "The Equation of the line is : (" << (y2 - y1) << ")x+(" << (x1

- x2) << ")y+(" << (x2 * y1 - x1 * y2) << ") = 0\n";

int s = (y2 - y1) * x + (x1 - x2) * y + (x2 * y1 - x1 * y2);

if (s < 0)

cout << "The points are NOT colinear";

else if (s > 0)

cout << "The points are NOT colinear";

`else`

cout << "The points are colinear";

`}`

Output:

$ g++ ColinearPoints.cpp $ a.out The points are: (9, 5), (4, 6), & (1, 2) The Equation of the line is : (-4)x+(3)y+(-2) = 0 The points are NOT colinear ------------------ (program exited with code: 0) Press return to continue

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