```/* E01DA_P0W_F C++ Header Example Program.
*
* Copyright 2019 Numerical Algorithms Group.
* Mark 27, 2019.
*/

#include <nag.h>
#include <dco_light.hpp>
#include <stdio.h>
#include <math.h>
#include <nagx04.h>
#include <string>
#include <iostream>
using namespace std;

int main(void)
{
// Scalars
int               exit_status = 0;

cout << "E01DA_P0W_F C++ Header Example Program Results\n\n";

// Skip first line of data file
string mystr;
getline (cin, mystr);
// Read number of x and y data points
Integer mx, my;
cin >> mx;
cin >> my;

// Allocate arrays for data and interpolant
double *x = 0,  *lamda = 0, *y = 0, *mu = 0, *f = 0, *c = 0,
*wrk = 0;
double            *dx = 0, *dy = 0, *df = 0;
Integer           *iwrk = 0;
Integer           lwrk = (my+6)*(mx+6);
x      = new double [mx];
y      = new double [my];
lamda  = new double [mx+4];
mu     = new double [my+4];
f      = new double [my*mx];
c      = new double [my*mx];
wrk    = new double [lwrk];
dx     = new double [mx];
dy     = new double [my];
df     = new double [my*mx];
iwrk   = new Integer[lwrk];

for (int i=0; i<mx; i++) {
double xr;
cin >> xr;
x[i] = xr;
}
for (int i=0; i<my; i++) {
double yr;
cin >> yr;
y[i] = yr;
}
for (int i=0; i<my; i++) {
double fr;
for (int j=0; j<mx; j++) {
Integer k = j*my + i;
cin >> fr;
f[k] = fr;
}
}

// Call the passive routine
Integer px, py;
Integer ifail = 0;

const Integer m = 1;
double        tx[m], ty[m], ff[m];
tx[0] = 1.4;
ty[0] = 0.5;

ifail = 0;

cout << "\n Interpolant evaluated at x = " << tx[0];
cout << " and y = " << ty[0];
cout.precision(5);
cout << "\n Value of interpolant        = ";
cout << ff[0] << endl;

delete [] x;
delete [] y;
delete [] lamda;
delete [] mu;
delete [] f;
delete [] c;
delete [] wrk;
delete [] dx;
delete [] dy;
delete [] df;
delete [] iwrk;
return exit_status;
}
```