void play_chess2(int s[][10], int n, int i, int j)
{
if (i > 9 || i < 0 || j < 0 || j > 9) {
printf("%d %d is not permitted! please reonput.\n", i, j);
play_chess(s,n);
}
if (s[i][j] != 0) {
printf("%d %d is not permitted! please reonput.\n", i, j);
play_chess(s, n);
}
else {
s[i][j] = n;
chessboard(s);
}
}
int main(void)
{
int a[10][10] = {0};
int n = 1;
chessboard(a);
printf("You can input 4 4 to put a chess on board!\n");
while (1) {
if (n == 1) {
play_chess(a, n);
n = det_chess(a, n);
if (n) break;
n = 2;
}
if (n == 2) {
computer(a, n);
n = det_chess(a, n);
if (n) {
n++;
break;
}
n = 1;
}
}
if (n == 1)
printf("Congratulations, Play %d WIN!\n",n);
else
printf("Congratulations, Computer WIN!\n");
return 0;
}
void play_chess(int s[][10], int n)
{
int i, j;
printf("Play %d:", n);
scanf("%d %d", &i, &j);
if (i > 9 || i < 0 || j < 0 || j > 9) {
printf("%d %d is not permitted! please reonput.\n", i, j);
play_chess(s,n);
}
if (s[i][j] != 0) {
printf("%d %d is not permitted! please reonput.\n", i, j);
play_chess(s, n);
}
else {
s[i][j] = n;
chessboard(s);
}
}
int play_chess(int i, int j)
{
/**/
if (!check_pos(i, j)) {
/* 先遍历某一行的所有列 */
for (++j; j <= BOARD_SIZE; ++j) {
if (check_pos(i, j))
break;
}
if (j > BOARD_SIZE) {
/* 没有符合的列，要回溯 */
return 1;
}
}
if (i <= BOARD_SIZE && j <= BOARD_SIZE) {
/* 符合 */
set_chess(i, j, HAVE_CHESS);
ret = play_chess(i+1, 1); // 下一层
}
}
