https://blog.youkuaiyun.com/2402_89254607zh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/2402_89254607/article/details/160476075https://blog.youkuaiyun.com/2402_89254607/article/details/1604760752402_89254607Fri, 24 Apr 2026 18:28:53 +0800https://blog.youkuaiyun.com/2402_89254607/article/details/156095927https://blog.youkuaiyun.com/2402_89254607/article/details/1560959272402_89254607Sun, 21 Dec 2025 19:34:43 +0800>1，于是我们可以很轻易地成功利用dfs构造出答案数组。解题思路：首先0或者1必然知道结果，接下来考虑2的情况，当剩下未知的位置的个数小于等于2的数量的时候，必然被取完，全部为‘-’，否则每当出现一个‘2’，则左右两边各会出现一个‘？算法：前缀和，哈希表，字符串。]]>https://blog.youkuaiyun.com/2402_89254607/article/details/155642168https://blog.youkuaiyun.com/2402_89254607/article/details/1556421682402_89254607Sat, 06 Dec 2025 17:48:20 +0800https://blog.youkuaiyun.com/2402_89254607/article/details/155352105https://blog.youkuaiyun.com/2402_89254607/article/details/1553521052402_89254607Fri, 28 Nov 2025 16:58:10 +0800https://blog.youkuaiyun.com/2402_89254607/article/details/155232411https://blog.youkuaiyun.com/2402_89254607/article/details/1552324112402_89254607Tue, 25 Nov 2025 13:50:46 +0800K所对应的墙壁距离。2.如果两者不在一条直线上，那么答案必然就是D走到D->K所对应的那个角落的距离（画图易知）: 显然，移动效率高的一方必然可以追到移动效率低的一方，所以-1的情况不可能出现。]]>https://blog.youkuaiyun.com/2402_89254607/article/details/155229352https://blog.youkuaiyun.com/2402_89254607/article/details/1552293522402_89254607Tue, 25 Nov 2025 11:48:39 +0800https://blog.youkuaiyun.com/2402_89254607/article/details/155199806https://blog.youkuaiyun.com/2402_89254607/article/details/1551998062402_89254607Mon, 24 Nov 2025 20:36:40 +0800https://blog.youkuaiyun.com/2402_89254607/article/details/155198826https://blog.youkuaiyun.com/2402_89254607/article/details/1551988262402_89254607Mon, 24 Nov 2025 16:50:59 +0800https://blog.youkuaiyun.com/2402_89254607/article/details/148287676https://blog.youkuaiyun.com/2402_89254607/article/details/1482876762402_89254607Wed, 28 May 2025 21:11:40 +0800https://blog.youkuaiyun.com/2402_89254607/article/details/148259182https://blog.youkuaiyun.com/2402_89254607/article/details/1482591822402_89254607Tue, 27 May 2025 16:19:01 +0800https://blog.youkuaiyun.com/2402_89254607/article/details/148256094https://blog.youkuaiyun.com/2402_89254607/article/details/1482560942402_89254607Tue, 27 May 2025 15:11:43 +0800https://blog.youkuaiyun.com/2402_89254607/article/details/148173615https://blog.youkuaiyun.com/2402_89254607/article/details/1481736152402_89254607Fri, 23 May 2025 21:32:45 +0800https://blog.youkuaiyun.com/2402_89254607/article/details/148123798https://blog.youkuaiyun.com/2402_89254607/article/details/1481237982402_89254607Wed, 21 May 2025 22:44:55 +0800https://blog.youkuaiyun.com/2402_89254607/article/details/148097873https://blog.youkuaiyun.com/2402_89254607/article/details/1480978732402_89254607Wed, 21 May 2025 17:16:03 +0800https://blog.youkuaiyun.com/2402_89254607/article/details/148087396https://blog.youkuaiyun.com/2402_89254607/article/details/1480873962402_89254607Tue, 20 May 2025 14:44:03 +0800https://blog.youkuaiyun.com/2402_89254607/article/details/148085303https://blog.youkuaiyun.com/2402_89254607/article/details/1480853032402_89254607Tue, 20 May 2025 14:12:13 +0800