From 912fc0fa918029d656da14351050b34278ae3fa3 Mon Sep 17 00:00:00 2001
From: Chijun Sima <1300339379@qq.com>
Date: Sun, 24 Dec 2017 16:40:07 +0800
Subject: [PATCH] perf improve

---
 chessboard/chessboard.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/chessboard/chessboard.cpp b/chessboard/chessboard.cpp
index 1de9050..cdada70 100644
--- a/chessboard/chessboard.cpp
+++ b/chessboard/chessboard.cpp
@@ -28,6 +28,7 @@ chessboard::chessboard() noexcept
 			pos[i][ii] = 7 - max(abs(i - 7), abs(ii - 7));
 		}
 	}
+	score_cache.reserve(15 * 15);
 	for (int i = 0; i < 15; ++i)
 	{
 		for (int ii = 0; ii < 15; ++ii)