Write a program in C/C++ to implement Bresenham’s line generation algorithm.

Here's a C++ program that implements Bresenham's line generation algorithm:

#include <iostream>
#include <graphics.h>

using namespace std;

void drawLine(int x0, int y0, int x1, int y1) {
  int dx = abs(x1 - x0);
  int dy = abs(y1 - y0);
  int sx, sy;
  if (x0 < x1) {
    sx = 1;
  } else {
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