#include <iostream>
#include <vector>
#include <string>

#include <adolc/adolc.h>
#include <adolc/taping.h>

using namespace std;

adouble obj(adouble parameters[3]) {
  adouble score = 0.0;
  for (unsigned i = 0; i < 3; ++i)
    score += parameters[i] + 2 * parameters[i];

  return score;
}


int main() {
  adouble start_values[3];
  start_values[0] <<= 100;
  start_values[1] <<= 150;
  start_values[2] <<= 75;

  trace_on(0);
  adouble ascore = obj(start_values);
  trace_off(1);

  double x[3];
  for (unsigned i = 0; i <3; ++i)
    x[i] = start_values[i].value();

  double g[3];
  int s = gradient(0,3, x, g);

  cout << "DONE" << endl;
	return 0;
}