short sudoku_solve(Sudoku *sudoku, const short i) {
short n;
short * arr_of_nine;
if (i == FIELD_SIZE) {
return TRUE; // end reached
} else if (sudoku->grid[i] == 0) {
arr_of_nine = (short *)malloc(sizeof(short) * ARC_SIZE);
sudoku_possible(sudoku, arr_of_nine, sudoku_coord(i));
for (n = 0; n < ARC_SIZE; ++n) {
if (arr_of_nine[n] == 0) continue;
sudoku->grid[i] = arr_of_nine[n];
// sudoku_print(&sudoku);
// printf("%s\033[1;1H");
if (sudoku_solve(sudoku, i + 1) == TRUE) {
free(arr_of_nine);
return TRUE;
}
}
sudoku->grid[i] = 0;
free(arr_of_nine);
return FALSE;
} else {
return sudoku_solve(sudoku, i + 1);
}
}
int main(int argc, char *argv[])
{
int c;
size_t n;
char puzzle[82];
char solution[82];
while ((c = getopt(argc, argv, optstring)) != -1) {
switch (c) {
case 'c':
g_count = atoi(optarg);
break;
case 'v':
g_verbose_flag = 1;
break;
case '?':
usage(argc, argv);
exit(EXIT_FAILURE);
break;
}
}
for (c = 0; c < 82; c++) /* just to be safe when calling strlen */
puzzle[c] = '\0';
/* read 81 char, else error exit */
while ((n = strlen(puzzle)) < 81) {
if (NULL == fgets(puzzle + n, sizeof(puzzle) - n, stdin))
break;
}
if ((n = strlen(puzzle)) < 81) {
if (g_verbose_flag)
fprintf(stderr,
"Error: not enough characters for a full 9x9 puzzle\n");
exit(EXIT_FAILURE);
}
/* read successful, now process puzzle */
if (g_count > 0) {
n = sudoku_nsolve(puzzle, solution, g_count);
if (g_verbose_flag)
fprintf(stderr, "%lu\n", (unsigned long) n);
if (n > 0)
printf("%s\n", solution);
exit(2);
} else {
if (sudoku_solve(puzzle, solution)) {
printf("%s\n", solution);
exit(EXIT_SUCCESS);
} else {
if (g_verbose_flag)
fprintf(stderr, "No solution found.\n");
exit(EXIT_FAILURE);
}
}
return 0;
}
/*
* Domain Function: test
*/
void
sudoku_test( void )
{
/* ::setz1_given( ) */
sudoku_setz1_given();
/* ::solve( ) */
sudoku_solve();
/* ::cleanup( ) */
sudoku_cleanup();
}
static PRESULT sudoku_solve_callback(POBJECT_HEAD obj, VEVENT event, UINT32 param1, UINT32 param2)
{
PRESULT ret = PROC_PASS;
UINT8 unact;
switch (event)
{
case EVN_UNKNOWN_ACTION:
unact = (VACTION)(param1>>16);
if (unact == VACT_ENTER)
{
sudoku_solve();
}
break;
}
return ret;
}
int main (int argc, char const *argv[])
{
int i;
Sudoku sudoku;
if (argc == 1) {
printf("usage: %s <file1> <filen> ...", argv[i]);
exit(1);
}
for (i = 1; i < argc; ++i) {
sudoku_initialize(&sudoku, argv[i]);
sudoku_solve(&sudoku, 0);
printf("file %s:\n", argv[i]);
sudoku_print(&sudoku);
}
return 0;
}
int main(void)
{
int n, m, i, j;
int **A;
ecp *p;
/* load problem */
printf("\nProblem\n");
sudoku *s = sudoku_new(stdin);
sudoku_show_problem(stdout, s);
/* solve */
printf("\nAnswer\n");
sudoku_solve(s);
sudoku_show_answer(stdout, s);
/* free */
sudoku_free(s);
return 0;
}