{"id":108504,"date":"2026-09-22T00:09:04","date_gmt":"2026-09-21T16:09:04","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/108504.html"},"modified":"2026-09-22T00:09:04","modified_gmt":"2026-09-21T16:09:04","slug":"kimi-leetcode-130-%e8%a2%ab%e5%9b%b4%e7%bb%95%e7%9a%84%e5%8c%ba%e5%9f%9f-java%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/108504.html","title":{"rendered":"Kimi LeetCode 130. \u88ab\u56f4\u7ed5\u7684\u533a\u57df Java\u5b9e\u73b0"},"content":{"rendered":"

130. \u88ab\u56f4\u7ed5\u7684\u533a\u57df<\/h3>\n

\u601d\u8def：\u76f4\u63a5\u4ece\u8fb9\u754c\u5185\u4fa7\u505aDFS\u4f1a\u9677\u5165"\u5982\u4f55\u77e5\u9053\u662f\u5426\u88ab\u5305\u56f4"\u7684\u56f0\u5883\u3002\u6362\u4e2a\u89d2\u5ea6\u2014\u2014\u6240\u6709\u4e0e\u8fb9\u754c\u76f8\u8fde\u7684 \u2018O\u2019 \u90fd\u4e0d\u53ef\u80fd\u88ab\u5305\u56f4\u3002\u6240\u4ee5：<\/p>\n

  • \u4ece\u56db\u6761\u8fb9\u754c\u7684 \u2018O\u2019 \u51fa\u53d1\u505a DFS\/BFS，\u6807\u8bb0\u6240\u6709\u8fde\u901a\u7684 \u2018O\u2019 \u4e3a\u7279\u6b8a\u6807\u8bb0（\u5982 '#'）<\/li>\n
  • \u904d\u5386\u6574\u4e2a\u77e9\u9635，\u628a\u5269\u4f59\u7684 'O' \u6539\u6210 'X'（\u8fd9\u4e9b\u662f\u771f\u6b63\u88ab\u56f4\u7ed5\u7684）<\/li>\n
  • \u628a '#' \u8fd8\u539f\u6210 'O'<\/li>\n

    DFS \u5b9e\u73b0<\/h4>\n

    class<\/span> Solution<\/span> {<\/span>
    \n private<\/span> int<\/span> m,<\/span> n;<\/span><\/p>\n

    public<\/span> void<\/span> solve<\/span>(<\/span>char<\/span>[<\/span>]<\/span>[<\/span>]<\/span> board)<\/span> {<\/span>
    \n if<\/span> (<\/span>board ==<\/span> null<\/span> ||<\/span> board.<\/span>length ==<\/span> 0<\/span>)<\/span> return<\/span>;<\/span>
    \n m =<\/span> board.<\/span>length;<\/span>
    \n n =<\/span> board[<\/span>0<\/span>]<\/span>.<\/span>length;<\/span><\/p>\n

    \/\/ \u4ece\u4e0a\u4e0b\u4e24\u6761\u8fb9\u754c\u7684 'O' \u51fa\u53d1<\/span>
    \n for<\/span> (<\/span>int<\/span> j =<\/span> 0<\/span>;<\/span> j <<\/span> n;<\/span> j++<\/span>)<\/span> {<\/span>
    \n if<\/span> (<\/span>board[<\/span>0<\/span>]<\/span>[<\/span>j]<\/span> ==<\/span> 'O'<\/span>)<\/span> dfs<\/span>(<\/span>board,<\/span> 0<\/span>,<\/span> j)<\/span>;<\/span>
    \n if<\/span> (<\/span>board[<\/span>m –<\/span> 1<\/span>]<\/span>[<\/span>j]<\/span> ==<\/span> 'O'<\/span>)<\/span> dfs<\/span>(<\/span>board,<\/span> m –<\/span> 1<\/span>,<\/span> j)<\/span>;<\/span>
    \n }<\/span>
    \n \/\/ \u4ece\u5de6\u53f3\u4e24\u6761\u8fb9\u754c\u7684 'O' \u51fa\u53d1<\/span>
    \n for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> m;<\/span> i++<\/span>)<\/span> {<\/span>
    \n if<\/span> (<\/span>board[<\/span>i]<\/span>[<\/span>0<\/span>]<\/span> ==<\/span> 'O'<\/span>)<\/span> dfs<\/span>(<\/span>board,<\/span> i,<\/span> 0<\/span>)<\/span>;<\/span>
    \n if<\/span> (<\/span>board[<\/span>i]<\/span>[<\/span>n –<\/span> 1<\/span>]<\/span> ==<\/span> 'O'<\/span>)<\/span> dfs<\/span>(<\/span>board,<\/span> i,<\/span> n –<\/span> 1<\/span>)<\/span>;<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u8fd8\u539f + \u586b\u5145<\/span>
    \n for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> m;<\/span> i++<\/span>)<\/span> {<\/span>
    \n for<\/span> (<\/span>int<\/span> j =<\/span> 0<\/span>;<\/span> j <<\/span> n;<\/span> j++<\/span>)<\/span> {<\/span>
    \n if<\/span> (<\/span>board[<\/span>i]<\/span>[<\/span>j]<\/span> ==<\/span> 'O'<\/span>)<\/span> board[<\/span>i]<\/span>[<\/span>j]<\/span> =<\/span> 'X'<\/span>;<\/span> \/\/ \u88ab\u56f4\u7ed5<\/span>
    \n else<\/span> if<\/span> (<\/span>board[<\/span>i]<\/span>[<\/span>j]<\/span> ==<\/span> '#'<\/span>)<\/span> board[<\/span>i]<\/span>[<\/span>j]<\/span> =<\/span> 'O'<\/span>;<\/span> \/\/ \u8fb9\u754c\u8fde\u901a，\u4fdd\u7559<\/span>
    \n }<\/span>
    \n }<\/span>
    \n }<\/span><\/p>\n

    private<\/span> void<\/span> dfs<\/span>(<\/span>char<\/span>[<\/span>]<\/span>[<\/span>]<\/span> board,<\/span> int<\/span> i,<\/span> int<\/span> j)<\/span> {<\/span>
    \n if<\/span> (<\/span>i <<\/span> 0<\/span> ||<\/span> i >=<\/span> m ||<\/span> j <<\/span> 0<\/span> ||<\/span> j >=<\/span> n ||<\/span> board[<\/span>i]<\/span>[<\/span>j]<\/span> !=<\/span> 'O'<\/span>)<\/span> return<\/span>;<\/span>
    \n board[<\/span>i]<\/span>[<\/span>j]<\/span> =<\/span> '#'<\/span>;<\/span>
    \n dfs<\/span>(<\/span>board,<\/span> i +<\/span> 1<\/span>,<\/span> j)<\/span>;<\/span>
    \n dfs<\/span>(<\/span>board,<\/span> i –<\/span> 1<\/span>,<\/span> j)<\/span>;<\/span>
    \n dfs<\/span>(<\/span>board,<\/span> i,<\/span> j +<\/span> 1<\/span>)<\/span>;<\/span>
    \n dfs<\/span>(<\/span>board,<\/span> i,<\/span> j –<\/span> 1<\/span>)<\/span>;<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    \u590d\u6742\u5ea6：\u65f6\u95f4 O(m \\\\times n)，\u6bcf\u4e2a\u683c\u5b50\u6700\u591a\u8bbf\u95ee\u4e00\u6b21；\u7a7a\u95f4 O(m \\\\times n)，\u9012\u5f52\u6808\u6700\u574f\u60c5\u51b5\u3002<\/p>\n

    BFS \u5b9e\u73b0（\u907f\u514d\u9012\u5f52\u6808\u6ea2\u51fa，\u9002\u5408\u8d85\u5927\u77e9\u9635）<\/h4>\n

    import<\/span> java.<\/span>util.<\/span><\/span>ArrayDeque<\/span><\/span>;<\/span>
    \nimport<\/span> java.<\/span>util.<\/span><\/span>Deque<\/span><\/span>;<\/span><\/p>\n

    class<\/span> Solution<\/span> {<\/span>
    \n public<\/span> void<\/span> solve<\/span>(<\/span>char<\/span>[<\/span>]<\/span>[<\/span>]<\/span> board)<\/span> {<\/span>
    \n if<\/span> (<\/span>board ==<\/span> null<\/span> ||<\/span> board.<\/span>length ==<\/span> 0<\/span>)<\/span> return<\/span>;<\/span>
    \n int<\/span> m =<\/span> board.<\/span>length,<\/span> n =<\/span> board[<\/span>0<\/span>]<\/span>.<\/span>length;<\/span>
    \n Deque<\/span><<\/span>int<\/span>[<\/span>]<\/span>><\/span> queue =<\/span> new<\/span> ArrayDeque<\/span><<\/span>><\/span><\/span>(<\/span>)<\/span>;<\/span>
    \n int<\/span>[<\/span>]<\/span>[<\/span>]<\/span> dirs =<\/span> {<\/span>{<\/span>1<\/span>,<\/span>0<\/span>}<\/span>,<\/span>{<\/span>–<\/span>1<\/span>,<\/span>0<\/span>}<\/span>,<\/span>{<\/span>0<\/span>,<\/span>1<\/span>}<\/span>,<\/span>{<\/span>0<\/span>,<\/span>–<\/span>1<\/span>}<\/span>}<\/span>;<\/span><\/p>\n

    \/\/ \u628a\u6240\u6709\u8fb9\u754c\u4e0a\u7684 'O' \u5165\u961f<\/span>
    \n for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> m;<\/span> i++<\/span>)<\/span> {<\/span>
    \n if<\/span> (<\/span>board[<\/span>i]<\/span>[<\/span>0<\/span>]<\/span> ==<\/span> 'O'<\/span>)<\/span> {<\/span> board[<\/span>i]<\/span>[<\/span>0<\/span>]<\/span> =<\/span> '#'<\/span>;<\/span> queue.<\/span>offer<\/span>(<\/span>new<\/span> int<\/span>[<\/span>]<\/span>{<\/span>i,<\/span> 0<\/span>}<\/span>)<\/span>;<\/span> }<\/span>
    \n if<\/span> (<\/span>board[<\/span>i]<\/span>[<\/span>n–<\/span>1<\/span>]<\/span> ==<\/span> 'O'<\/span>)<\/span> {<\/span> board[<\/span>i]<\/span>[<\/span>n–<\/span>1<\/span>]<\/span> =<\/span> '#'<\/span>;<\/span> queue.<\/span>offer<\/span>(<\/span>new<\/span> int<\/span>[<\/span>]<\/span>{<\/span>i,<\/span> n–<\/span>1<\/span>}<\/span>)<\/span>;<\/span> }<\/span>
    \n }<\/span>
    \n for<\/span> (<\/span>int<\/span> j =<\/span> 0<\/span>;<\/span> j <<\/span> n;<\/span> j++<\/span>)<\/span> {<\/span>
    \n if<\/span> (<\/span>board[<\/span>0<\/span>]<\/span>[<\/span>j]<\/span> ==<\/span> 'O'<\/span>)<\/span> {<\/span> board[<\/span>0<\/span>]<\/span>[<\/span>j]<\/span> =<\/span> '#'<\/span>;<\/span> queue.<\/span>offer<\/span>(<\/span>new<\/span> int<\/span>[<\/span>]<\/span>{<\/span>0<\/span>,<\/span> j}<\/span>)<\/span>;<\/span> }<\/span>
    \n if<\/span> (<\/span>board[<\/span>m–<\/span>1<\/span>]<\/span>[<\/span>j]<\/span> ==<\/span> 'O'<\/span>)<\/span> {<\/span> board[<\/span>m–<\/span>1<\/span>]<\/span>[<\/span>j]<\/span> =<\/span> '#'<\/span>;<\/span> queue.<\/span>offer<\/span>(<\/span>new<\/span> int<\/span>[<\/span>]<\/span>{<\/span>m–<\/span>1<\/span>,<\/span> j}<\/span>)<\/span>;<\/span> }<\/span>
    \n }<\/span><\/p>\n

    \/\/ BFS \u6807\u8bb0\u6240\u6709\u4e0e\u8fb9\u754c\u8fde\u901a\u7684 'O'<\/span>
    \n while<\/span> (<\/span>!<\/span>queue.<\/span>isEmpty<\/span>(<\/span>)<\/span>)<\/span> {<\/span>
    \n int<\/span>[<\/span>]<\/span> cur =<\/span> queue.<\/span>poll<\/span>(<\/span>)<\/span>;<\/span>
    \n for<\/span> (<\/span>int<\/span>[<\/span>]<\/span> d :<\/span> dirs)<\/span> {<\/span>
    \n int<\/span> x =<\/span> cur[<\/span>0<\/span>]<\/span> +<\/span> d[<\/span>0<\/span>]<\/span>,<\/span> y =<\/span> cur[<\/span>1<\/span>]<\/span> +<\/span> d[<\/span>1<\/span>]<\/span>;<\/span>
    \n if<\/span> (<\/span>x >=<\/span> 0<\/span> &&<\/span> x <<\/span> m &&<\/span> y >=<\/span> 0<\/span> &&<\/span> y <<\/span> n &&<\/span> board[<\/span>x]<\/span>[<\/span>y]<\/span> ==<\/span> 'O'<\/span>)<\/span> {<\/span>
    \n board[<\/span>x]<\/span>[<\/span>y]<\/span> =<\/span> '#'<\/span>;<\/span>
    \n queue.<\/span>offer<\/span>(<\/span>new<\/span> int<\/span>[<\/span>]<\/span>{<\/span>x,<\/span> y}<\/span>)<\/span>;<\/span>
    \n }<\/span>
    \n }<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u8fd8\u539f + \u586b\u5145<\/span>
    \n for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> m;<\/span> i++<\/span>)<\/span> {<\/span>
    \n for<\/span> (<\/span>int<\/span> j =<\/span> 0<\/span>;<\/span> j <<\/span> n;<\/span> j++<\/span>)<\/span> {<\/span>
    \n if<\/span> (<\/span>board[<\/span>i]<\/span>[<\/span>j]<\/span> ==<\/span> 'O'<\/span>)<\/span> board[<\/span>i]<\/span>[<\/span>j]<\/span> =<\/span> 'X'<\/span>;<\/span>
    \n else<\/span> if<\/span> (<\/span>board[<\/span>i]<\/span>[<\/span>j]<\/span> ==<\/span> '#'<\/span>)<\/span> board[<\/span>i]<\/span>[<\/span>j]<\/span> =<\/span> 'O'<\/span>;<\/span>
    \n }<\/span>
    \n }<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    \u5173\u952e\u70b9<\/h4>\n
      \n
    • \u6838\u5fc3\u8f6c\u5316：\u4e0d\u5224\u65ad"\u54ea\u4e9b O \u88ab\u5305\u56f4"，\u800c\u662f\u53cd\u8fc7\u6765\u6807\u8bb0"\u54ea\u4e9b O \u4e00\u5b9a\u4e0d\u88ab\u5305\u56f4"（\u4e0e\u8fb9\u754c\u8fde\u901a），\u5269\u4e0b\u7684\u5c31\u662f\u8981\u586b\u5145\u7684\u3002<\/li>\n
    • DFS \u5199\u6cd5\u7b80\u6d01\u4f46\u6700\u574f\u60c5\u51b5（\u5168\u662f \u2018O\u2019）\u9012\u5f52\u6df1\u5ea6\u53ef\u8fbe m \\\\times n，\u53ef\u80fd\u6808\u6ea2\u51fa，\u9762\u8bd5\u65f6\u53ef\u4e3b\u52a8\u63d0\u51fa BFS \u66ff\u4ee3\u3002<\/li>\n
    • \u8fdb\u9636\u65b9\u6848：\u5e76\u67e5\u96c6，\u628a\u6240\u6709\u8fb9\u754c \u2018O\u2019 \u548c\u4e00\u4e2a\u865a\u62df\u7684"\u8fb9\u754c\u54e8\u5175"\u8282\u70b9 union，\u6700\u540e\u68c0\u67e5\u6bcf\u4e2a\u683c\u5b50\u662f\u5426\u4e0e\u54e8\u5175\u8fde\u901a\u3002\u65f6\u95f4\u590d\u6742\u5ea6\u540c\u6837 O(mn)，\u9762\u8bd5\u4e2d\u4f5c\u4e3a\u6269\u5c55\u601d\u8def\u63d0\u53ca\u5373\u53ef\u3002<\/li>\n
    • \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

      130. \u88ab\u56f4\u7ed5\u7684\u533a\u57df
      \n\u601d\u8def：\u76f4\u63a5\u4ece\u8fb9\u754c\u5185\u4fa7\u505aDFS\u4f1a\u9677\u5165\\”\u5982\u4f55\u77e5\u9053\u662f\u5426\u88ab\u5305\u56f4\\”\u7684\u56f0\u5883\u3002\u6362\u4e2a\u89d2\u5ea6\u2014\u2014\u6240\u6709\u4e0e\u8fb9\u754c\u76f8\u8fde\u7684 \u2018O\u2019 \u90fd\u4e0d\u53ef\u80fd\u88ab\u5305\u56f4\u3002\u6240\u4ee5：
      \n\u4ece\u56db\u6761\u8fb9\u754c\u7684 \u2018O\u2019 \u51fa\u53d1\u505a DFS\/BFS，\u6807\u8bb0\u6240\u6709\u8fde\u901a\u7684 \u2018O\u2019 \u4e3a\u7279\u6b8a\u6807\u8bb0（\u5982 #）\u904d\u5386\u6574\u4e2a\u77e9\u9635，\u628a\u5269\u4f59\u7684 O \u6539\u6210 X（\u8fd9\u4e9b\u662f\u771f\u6b63\u88ab\u56f4\u7ed5\u7684）\u628a # \u8fd8\u539f\u6210 O
      \nDFS \u5b9e\u73b0
      \nclass Solution {pr<\/p>\n","protected":false},"author":2,"featured_media":108503,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,2692,292,1813,427],"topic":[],"class_list":["post-108504","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-java","tag-leetcode","tag-292","tag-1813","tag-427"],"yoast_head":"\nKimi LeetCode 130. \u88ab\u56f4\u7ed5\u7684\u533a\u57df Java\u5b9e\u73b0 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/108504.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kimi LeetCode 130. \u88ab\u56f4\u7ed5\u7684\u533a\u57df Java\u5b9e\u73b0 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"130. \u88ab\u56f4\u7ed5\u7684\u533a\u57df \u601d\u8def：\u76f4\u63a5\u4ece\u8fb9\u754c\u5185\u4fa7\u505aDFS\u4f1a\u9677\u5165"\u5982\u4f55\u77e5\u9053\u662f\u5426\u88ab\u5305\u56f4"\u7684\u56f0\u5883\u3002\u6362\u4e2a\u89d2\u5ea6\u2014\u2014\u6240\u6709\u4e0e\u8fb9\u754c\u76f8\u8fde\u7684 \u2018O\u2019 \u90fd\u4e0d\u53ef\u80fd\u88ab\u5305\u56f4\u3002\u6240\u4ee5： \u4ece\u56db\u6761\u8fb9\u754c\u7684 \u2018O\u2019 \u51fa\u53d1\u505a DFS\/BFS，\u6807\u8bb0\u6240\u6709\u8fde\u901a\u7684 \u2018O\u2019 \u4e3a\u7279\u6b8a\u6807\u8bb0（\u5982 #）\u904d\u5386\u6574\u4e2a\u77e9\u9635，\u628a\u5269\u4f59\u7684 O \u6539\u6210 X（\u8fd9\u4e9b\u662f\u771f\u6b63\u88ab\u56f4\u7ed5\u7684）\u628a # \u8fd8\u539f\u6210 O DFS \u5b9e\u73b0 class Solution {pr\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/108504.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-09-21T16:09:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260921160901-6ab1569d4cb89.jpg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/108504.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/108504.html\",\"name\":\"Kimi LeetCode 130. \u88ab\u56f4\u7ed5\u7684\u533a\u57df Java\u5b9e\u73b0 - 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