```/* nag_rand_geom (g05tcc) Example Program.
*
* Copyright 2017 Numerical Algorithms Group.
*
* Mark 26.1, 2017.
*/
/* Pre-processor includes */
#include <stdio.h>
#include <math.h>
#include <nag.h>
#include <nag_stdlib.h>
#include <nagg05.h>

int main(void)
{
/* Integer scalar and array declarations */
Integer exit_status = 0;
Integer i, lr, lstate;
Integer *state = 0, *x = 0;

/* NAG structures */
NagError fail;

/* Double scalar and array declarations */
double *r = 0;

/* Set the distribution parameters */
double p = 0.0010e0;

/* Set the mode we will be using. As p is small
we will not use a reference vector */
Nag_ModeRNG mode = Nag_GenerateWithoutReference;

/* Set the sample size */
Integer n = 10;

/* Choose the base generator */
Nag_BaseRNG genid = Nag_Basic;
Integer subid = 0;

/* Set the seed */
Integer seed[] = { 1762543 };
Integer lseed = 1;

/* Initialize the error structure */
INIT_FAIL(fail);

printf("nag_rand_geom (g05tcc) Example Program Results\n\n");

/* Get the length of the state array */
lstate = -1;
nag_rand_init_repeatable(genid, subid, seed, lseed, state, &lstate, &fail);
if (fail.code != NE_NOERROR) {
printf("Error from nag_rand_init_repeatable (g05kfc).\n%s\n",
fail.message);
exit_status = 1;
goto END;
}

/* Calculate the size of the reference vector, if any */
lr = (mode != Nag_GenerateWithoutReference) ? 8 + 42 / p : 0;

/* Allocate arrays */
if (!(r = NAG_ALLOC(lr, double)) ||
!(state = NAG_ALLOC(lstate, Integer)) || !(x = NAG_ALLOC(n, Integer)))
{
printf("Allocation failure\n");
exit_status = -1;
goto END;
}

/* Initialize the generator to a repeatable sequence */
nag_rand_init_repeatable(genid, subid, seed, lseed, state, &lstate, &fail);
if (fail.code != NE_NOERROR) {
printf("Error from nag_rand_init_repeatable (g05kfc).\n%s\n",
fail.message);
exit_status = 1;
goto END;
}

/* Generate the variates, dont use a reference vector as p is close to 0 */
nag_rand_geom(mode, n, p, r, lr, state, x, &fail);
if (fail.code != NE_NOERROR) {
printf("Error from nag_rand_geom (g05tcc).\n%s\n", fail.message);
exit_status = 1;
goto END;
}

/* Display the variates */
for (i = 0; i < n; i++)
printf("%12" NAG_IFMT "\n", x[i]);

END:
NAG_FREE(r);
NAG_FREE(state);
NAG_FREE(x);

return exit_status;
}
```