int main() {
scanf("%d",&test);
while(test--) {
init();
readSudoku();
solveDLX(0);
if(!found) puts("N");
}
return 0;
}
int main() {
fread_unlocked(ibuff, 3000, 1, stdin);
getstr(dump);
test = atoi(dump);
while(test--) {
init();
readSudoku();
solveDLX(0);
if(test) getstr(dump), *out++ = '\n';
}
fwrite_unlocked(obuff, out - obuff, 1, stdout);
return 0;
}
int main(void) {
int puzzle[9][9]; /* array to store the puzzle */
readSudoku(puzzle); /* read in the puzzle */
printf ("%d\n", checkValid(puzzle, 0, 2, 5)); /* place 5 in row 0, column 2 = invalid */
printf ("%d\n", checkValid(puzzle, 0, 2, 8)); /* place 8 in row 0, column 2 = invalid */
printf ("%d\n", checkValid(puzzle, 0, 2, 9)); /* place 9 in row 0, column 2 = invalid */
printf ("%d\n", checkValid(puzzle, 1, 1, 8)); /* place 8 in row 1, column 1 = valid */
printf ("%d\n", checkValid(puzzle, 0, 8, 7)); /* place 7 in row 0, column 8 = valid */
printf ("%d\n", checkValid(puzzle, 8, 0, 6)); /* place 6 in row 8, column 0 = valid */
printf ("%d\n", checkValid(puzzle, 0, 0, 6)); /* place 6 in row 0, column 0 = square not empty */
return 0;
}
/**
* This program tries to resolve a given Sudoku file.
*
* @param argc Argument count
* @param argv Arguments
*/
int main(int argc, char** argv) {
if (argc != 2) {
printf("Usage: <solver> <sudoku file>\n");
exit(EXIT_FAILURE);
} else {
int ret;
// allocate matrix to read into
char** sudoku_array = allocate_sudoku();
// read input sudoku file
ret = readSudoku(argv[1], sudoku_array);
// abort if file is corrupt
if (ret != 0) {
printf("The read process failed - exiting\n");
exit(EXIT_FAILURE);
}
// print input sudoku
printf("<<INPUT SUDOKU>>\n");
print_sudoku(sudoku_array);
printf("-----------------\n");
// solve it
ret = solve_sudoku(sudoku_array);
// print output sudoku
printf("<<OUTPUT SUDOKU>>\n");
print_sudoku(sudoku_array);
printf("-----------------\n");
// print if the sudoku could be solved
if (ret == 0)
printf("The Sodoku was solved\n");
else
printf("The Sudoku is irresolvable\n");
// free allocated matrix
unallocate_sudoku(sudoku_array);
exit(EXIT_SUCCESS);
}
}
