第一回 オフラインリアルタイムどう書く の回答

http://nabetani.sakura.ne.jp/hena/1/ の回答

実行方法

$php main.php < input.txt

スクリプトとインプットファイル

main.php

<?php
function ox($i) {
  return ($i == 0)? "o" : "x";
}
function play_game($str) {
  $board = array_fill(0, 9, 0);
  for($i = 0; $i < 9; $i++) {
    $p = $i % 2;
    $v = intval($str[$i]) - 1;
    if($board[$v] != 0) return sprintf("Foul : %s won.", ox(($i + 1) % 2));
    else                $board[$v] = $p + 1;
    if(($board[0] & $board[1] & $board[2]) ||
       ($board[3] & $board[4] & $board[5]) ||
       ($board[6] & $board[7] & $board[8]) ||
       ($board[0] & $board[3] & $board[6]) ||
       ($board[1] & $board[4] & $board[7]) ||
       ($board[2] & $board[5] & $board[8]) ||
       ($board[0] & $board[4] & $board[8]) ||
       ($board[2] & $board[4] & $board[6]))
       return sprintf("%s won.", ox($p));
  }
	return "Draw game.";
}
while(preg_match('/(\d+)\s*(.*)/',fgets(STDIN), $m)) {
	$res = play_game(strval($m[1]));
	if($res != chop($m[2])) {
	  printf("input:%s\n", $m[1]); 
	  printf("result = %s\n", $res);
	  printf("actual = %s\n", chop($m[2]));
	}
}

インプットファイル。

input.txt

79538246	x won.
35497162193	x won.
61978543	x won.
254961323121	x won.
6134278187	x won.
4319581		Foul : x won.
9625663381	Foul : x won.
7975662		Foul : x won.
2368799597	Foul : x won.
18652368566	Foul : x won.
965715		o won.
38745796	o won.
371929		o won.
758698769	o won.
42683953	o won.
618843927	Foul : o won.
36535224	Foul : o won.
882973		Foul : o won.
653675681	Foul : o won.
9729934662	Foul : o won.
972651483927	Draw game.
5439126787	Draw game.
142583697	Draw game.
42198637563	Draw game.
657391482	Draw game.