○×ゲームで…

[G]

#include <stdio.h>

#define SIZE 3
#define NONE 0
#define MARU 1
#define BATU 2

int board[SIZE][SIZE] = { 0 };
char mark[3][3] = {"－", "○", "×"};

void print_board() {
  int i, j;
  for (i = 0; i < SIZE; ++i) {
    for (j = 0; j < SIZE; ++j) /* line */
      printf("+--");
    printf("+\n");
    
    for (j = 0; j < SIZE; ++j) /* mark */
      printf("|%s", mark[board[j]]);
    printf("|\n");
  }
  for (j = 0; j < SIZE; ++j) /* line */
    printf("+--");
  printf("+\n");
}
int check_end() {
  int i, j;
  for (i = 0; i < SIZE; ++i) 
    for (j = 0; j < SIZE; ++j) 
      if (board[j] == NONE) return 0;
  return 1;
}

int valid_position(int x, int y) {
  return 0 <= x && x < SIZE &&
         0 <= y && y < SIZE &&
         board[x][y] == NONE;
}
int main() {

  int x, y;
  int player = MARU;

  printf("<< ○× >>\n");
  print_board();

  while (!check_end()) {

    while (1) {
      printf("Player%d Put[%s] (x, y): ", player, mark[playe[/url]);
      scanf("%d %d", &x, &y);
      if (valid_position(x, y)) break;
      printf("Can't Put. Again.\n");
    }
    board[x][y] = player; /* set mark */

    printf("<< ○× >>\n");
    print_board();

    if (player == MARU) player = BATU; /* change player */
    else                player = MARU;
  }
  printf("Game is Over.\n");
}


下のような実行例にしたいのですが混乱して○と×の位置がおかしくなってしまったので教えてください。


実行例

<< ○× >>
+--+--+--+
|－|－|－|
+--+--+--+
|－|－|－|
+--+--+--+
|－|－|－|
+--+--+--+
Player1 Put[○] (x, y): 1 1
<< ○× >>
+--+--+--+
|－|－|－|
+--+--+--+
|－|○|－|
+--+--+--+
|－|－|－|
+--+--+--+

<<中略>>

Player2 Put[×] (x, y): 2 1
<< ○× >>
+--+--+--+
|×|－|－|
+--+--+--+
|○|○|×|
+--+--+--+
|－|－|－|
+--+--+--+
Player1 Put[○] (x, y): 1 2
<< ○× >>
+--+--+--+
|×|－|－|
+--+--+--+
|○|○|×|
+--+--+--+
|－|○|－|
+--+--+--+

	Player2 Put[×] (x, y): 1 2
Can't Put. Again.
<< ○× >>
+--+--+--+
|×|－|－|
+--+--+--+
|○|○|×|
+--+--+--+
|－|○|－|
+--+--+--+
Player2 Put[×] (x, y): 1 0
<< ○× >>
+--+--+--+
|×|×|－|
+--+--+--+
|○|○|×|
+--+--+--+
|－|○|－|

<<中略>>

Player2 Put[×] (x, y): 0 2
<< ○× >>
+--+--+--+
|×|×|○|
+--+--+--+
|○|○|×|
+--+--+--+
|×|○|－|
+--+--+--+
Player1 Put[○] (x, y): 2 2
<< ○× >>
+--+--+--+
|×|×|○|
+--+--+--+
|○|○|×|
+--+--+--+
|×|○|○|
+--+--+--+
Game is Over.

[Hermit]

void print_board(void)
のところの、
printf("|%s", mark[board[j]]);
を、
printf("|%s", mark[board[j]]);
にするだけでいいのではないでしょうか。

[G]

ありがとうございます。