{"id":26742,"date":"2024-10-27T11:52:19","date_gmt":"2024-10-27T11:52:19","guid":{"rendered":"http:\/\/atmokpo.com\/w\/?p=26742"},"modified":"2024-11-26T07:31:30","modified_gmt":"2024-11-26T07:31:30","slug":"%ec%9e%90%eb%b0%94-%ec%bd%94%eb%94%a9%ed%85%8c%ec%8a%a4%ed%8a%b8-%ea%b0%95%ec%a2%8c-%ea%b9%8a%ec%9d%b4-%ec%9a%b0%ec%84%a0-%ed%83%90%ec%83%89","status":"publish","type":"post","link":"https:\/\/atmokpo.com\/w\/26742\/","title":{"rendered":"\uc790\ubc14 \ucf54\ub529\ud14c\uc2a4\ud2b8 \uac15\uc88c, \uae4a\uc774 \uc6b0\uc120 \ud0d0\uc0c9"},"content":{"rendered":"<p><body><\/p>\n<p>\ucf54\ub529\ud14c\uc2a4\ud2b8\uc758 \ub9ce\uc740 \ubb38\uc81c\ub4e4\uc740 \uadf8\ub798\ud504 \ub610\ub294 \ud2b8\ub9ac \uad6c\uc870\ub97c \uae30\ubc18\uc73c\ub85c \ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubb38\uc81c\ub97c \ud574\uacb0\ud558\ub294 \ub370 \uc720\uc6a9\ud55c \uc54c\uace0\ub9ac\uc998 \uc911 \ud558\ub098\uac00 \uae4a\uc774 \uc6b0\uc120 \ud0d0\uc0c9(Depth-First Search, DFS)\uc785\ub2c8\ub2e4. \uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 DFS\uc758 \uac1c\ub150\uacfc \uc790\ubc14\ub85c \uad6c\ud604\ud558\ub294 \ubc29\ubc95\uc744 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>1. \uae4a\uc774 \uc6b0\uc120 \ud0d0\uc0c9(DFS)\ub780?<\/h2>\n<p>\uae4a\uc774 \uc6b0\uc120 \ud0d0\uc0c9\uc740 \uadf8\ub798\ud504 \ud0d0\uc0c9 \uc54c\uace0\ub9ac\uc998\uc758 \uc77c\uc885\uc73c\ub85c, \uac00\ub2a5\ud55c \ud55c \uae4a\uc774 \ub4e4\uc5b4\uac00\uba74\uc11c \ub178\ub4dc\ub97c \ud0d0\uc0c9\ud558\ub294 \ubc29\ubc95\uc785\ub2c8\ub2e4. \uc989, \ud55c \uac08\ub798\ub85c \uacc4\uc18d \ub098\uc544\uac00\ub2e4\uac00 \ub354 \uc774\uc0c1 \uc9c4\ud589\ud560 \uc218 \uc5c6\uac8c \ub418\uba74 \ud55c \ub2e8\uacc4 \uc55e\uc758 \ub178\ub4dc\ub85c \ub418\ub3cc\uc544\uac00\uc11c \ub2e4\ub978 \uac08\ub798\ub97c \ud0d0\uc0c9\ud558\ub294 \ubc29\uc2dd\uc785\ub2c8\ub2e4.<\/p>\n<h2>2. DFS\uc758 \ud2b9\uc9d5<\/h2>\n<ul>\n<li>\uc2a4\ud0dd\uc744 \uc0ac\uc6a9\ud558\uc5ec \ubc29\ubb38\ud55c \ub178\ub4dc\ub97c \uc800\uc7a5\ud569\ub2c8\ub2e4.<\/li>\n<li>\uc7ac\uadc0(recursion)\ub97c \ud1b5\ud574 \uad6c\ud604\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li>\ub108\ube44 \uc6b0\uc120 \ud0d0\uc0c9(BFS)\uacfc\ub294 \ub2ec\ub9ac \ub178\ub4dc\uc758 \uae4a\uc774\ub098 \uacbd\ub85c\ub97c \uc6b0\uc120 \uace0\ub824\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>3. \ubb38\uc81c \uc815\uc758<\/h2>\n<p>\ub2e4\uc74c\uacfc \uac19\uc740 \uadf8\ub798\ud504\uac00 \uc788\ub2e4\uace0 \uac00\uc815\ud574 \ubd05\uc2dc\ub2e4:<\/p>\n<pre>\n        A\n       \/ \\\n      B   C\n     \/ \\   \\\n    D   E   F\n    <\/pre>\n<p>\uc774 \uadf8\ub798\ud504\uc5d0\uc11c DFS\ub97c \uc0ac\uc6a9\ud558\uc5ec A\uc5d0\uc11c \uc2dc\uc791\ud574 D\uae4c\uc9c0\uc758 \uacbd\ub85c\ub97c \ucc3e\uc544\ubcf4\ub824 \ud569\ub2c8\ub2e4. \uacbd\ub85c\ub97c \ucc3e\uace0 A\uc5d0\uc11c D\uae4c\uc9c0 \ubc29\ubb38\ud55c \ub178\ub4dc\ub97c \ucd9c\ub825\ud558\ub294 \uac83\uc774 \ubaa9\ud45c\uc785\ub2c8\ub2e4.<\/p>\n<h2>4. \ubb38\uc81c \ud574\uacb0 \uacfc\uc815<\/h2>\n<p>DFS\ub97c \uc0ac\uc6a9\ud558\uc5ec \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud574, \uba3c\uc800 \uadf8\ub798\ud504\ub97c \ud45c\ud604\ud55c \ud6c4 DFS \uc54c\uace0\ub9ac\uc998\uc744 \uad6c\ud604\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h3>4.1 \uadf8\ub798\ud504 \ud45c\ud604<\/h3>\n<p>\uadf8\ub798\ud504\ub294 \ubcf4\ud1b5 \uc778\uc811 \ub9ac\uc2a4\ud2b8\ub098 \uc778\uc811 \ud589\ub82c\ub85c \ud45c\ud604\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc5ec\uae30\uc11c\ub294 \uc778\uc811 \ub9ac\uc2a4\ud2b8\ub97c \uc0ac\uc6a9\ud558\uc5ec \uadf8\ub798\ud504\ub97c \ud45c\ud604\ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<h4>\uc790\ubc14\ub85c \uadf8\ub798\ud504 \uad6c\ud604\ud558\uae30<\/h4>\n<pre>\n    import java.util.*;\n\n    class Graph {\n        private Map<string, list<string=\"\">&gt; adjacencyList;\n\n        public Graph() {\n            adjacencyList = new HashMap&lt;&gt;();\n        }\n\n        public void addEdge(String source, String destination) {\n            adjacencyList.putIfAbsent(source, new ArrayList&lt;&gt;());\n            adjacencyList.get(source).add(destination);\n        }\n        \n        public Map<string, list<string=\"\">&gt; getAdjacencyList() {\n            return adjacencyList;\n        }\n    }\n    <\/string,><\/string,><\/pre>\n<h3>4.2 DFS \uc54c\uace0\ub9ac\uc998 \uad6c\ud604<\/h3>\n<p>DFS \uc54c\uace0\ub9ac\uc998\uc740 \ub2e4\uc74c\uacfc \uac19\uc740 \ubc29\uc2dd\uc73c\ub85c \uad6c\ud604\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubc29\ubb38\ud55c \ub178\ub4dc\ub97c \uc800\uc7a5\ud558\uae30 \uc704\ud574 Set\uc744 \uc0ac\uc6a9\ud558\uace0 \uc7ac\uadc0 \ud638\ucd9c\uc744 \ud1b5\ud574 \uae4a\uc774 \ud0d0\uc0c9\uc744 \uc218\ud589\ud569\ub2c8\ub2e4.<\/p>\n<h4>\uc790\ubc14 DFS \uba54\uc11c\ub4dc<\/h4>\n<pre>\n    class DFS {\n        private Set<string> visited;\n        private List<string> path;\n\n        public DFS() {\n            visited = new HashSet&lt;&gt;();\n            path = new ArrayList&lt;&gt;();\n        }\n\n        public void depthFirstSearch(Graph graph, String node) {\n            if (!visited.contains(node)) {\n                visited.add(node);\n                path.add(node);\n                \n                for (String neighbor : graph.getAdjacencyList().get(node)) {\n                    depthFirstSearch(graph, neighbor);\n                }\n            }\n        }\n\n        public List<string> getPath() {\n            return path;\n        }\n    }\n    <\/string><\/string><\/string><\/pre>\n<h2>5. \uc804\uccb4 \ucf54\ub4dc<\/h2>\n<p>\uc774\uc81c \uc804\uccb4 \ucf54\ub4dc\ub97c \ud558\ub098\ub85c \ud569\uccd0\uc11c \uc0ac\uc6a9\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \uadf8\ub798\ud504\ub97c \ub9cc\ub4e4\uace0 DFS\ub97c \uc2e4\ud589\ud558\ub294 \uc804\uccb4 \ucf54\ub4dc\uc785\ub2c8\ub2e4.<\/p>\n<pre>\n    public class Main {\n        public static void main(String[] args) {\n            Graph graph = new Graph();\n            graph.addEdge(\"A\", \"B\");\n            graph.addEdge(\"A\", \"C\");\n            graph.addEdge(\"B\", \"D\");\n            graph.addEdge(\"B\", \"E\");\n            graph.addEdge(\"C\", \"F\");\n\n            DFS dfs = new DFS();\n            dfs.depthFirstSearch(graph, \"A\");\n\n            System.out.println(\"DFS \uacbd\ub85c: \" + dfs.getPath());\n        }\n    }\n    <\/pre>\n<h2>6. \ucf54\ub4dc \uc2e4\ud589 \uacb0\uacfc<\/h2>\n<p>\uc704 \ucf54\ub4dc\ub97c \uc2e4\ud589\ud558\uba74 \ub2e4\uc74c\uacfc \uac19\uc740 \uacb0\uacfc\ub97c \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<pre>\n    DFS \uacbd\ub85c: [A, B, D, E, C, F]\n    <\/pre>\n<p>\uacb0\uacfc\uc5d0\uc11c \ubcf4\ub4ef\uc774 DFS\ub294 A\uc5d0\uc11c \uc2dc\uc791\ud558\uc5ec B\ub97c \ubc29\ubb38\ud558\uace0 \uadf8 \ud6c4 D\ub85c \uae4a\uc774 \ub4e4\uc5b4\uac14\uc2b5\ub2c8\ub2e4. DFS\uc758 \ud0d0\uc0c9 \uc21c\uc11c\uac00 \uc720\uc9c0\ub418\ub294 \uac83\uc744 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>7. \uc2ec\ud654 \ud559\uc2b5<\/h2>\n<p>\uc774 \uac15\uc88c\uc5d0\uc11c\ub294 DFS\uc758 \uac1c\ub150\uacfc \uae30\ubcf8\uc801\uc778 \uad6c\ud604 \ubc29\ubc95\uc744 \uc18c\uac1c\ud588\uc2b5\ub2c8\ub2e4. \ub354 \ub098\uc544\uac00 DFS\ub97c \ud65c\uc6a9\ud55c \ub2e4\uc591\ud55c \ubb38\uc81c\ub4e4\uc744 \ud480\uc5b4\ubcf4\uba70 \uc2e4\ub825\uc744 \uc313\uc544\uac00\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4. \ub300\ud45c\uc801\uc778 \ubb38\uc81c\ub85c\ub294:<\/p>\n<ul>\n<li>\ubbf8\ub85c \ud0d0\uc0c9<\/li>\n<li>\uc5f0\uacb0 \uc694\uc18c \ucc3e\uae30<\/li>\n<li>\uc0ac\uc774\ud074 \uac80\ucd9c<\/li>\n<\/ul>\n<h2>8. \uacb0\ub860<\/h2>\n<p>\uc774\ubc88 \uac15\uc88c\ub97c \ud1b5\ud574 \uae4a\uc774 \uc6b0\uc120 \ud0d0\uc0c9\uc758 \uae30\ubcf8 \uac1c\ub150\uacfc \uc790\ubc14\uc5d0\uc11c\uc758 \uad6c\ud604 \ubc29\ubc95\uc744 \ubc30\uc6e0\uc2b5\ub2c8\ub2e4. \uadf8\ub798\ud504 \ubb38\uc81c\ub294 \ucf54\ub529\ud14c\uc2a4\ud2b8\uc5d0\uc11c \uc790\uc8fc \ucd9c\uc81c\ub418\ubbc0\ub85c \ubc18\ub4dc\uc2dc \uc219\uc9c0\ud558\uace0 \uc5f0\uc2b5\ud574\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4. \ub2e4\uc74c \uac15\uc88c\uc5d0\uc11c\ub294 \ub2e4\ub978 \ud0d0\uc0c9 \uc54c\uace0\ub9ac\uc998\uc778 \ub108\ube44 \uc6b0\uc120 \ud0d0\uc0c9(BFS)\uc5d0 \ub300\ud574 \ub2e4\ub904\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<p><\/body><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ucf54\ub529\ud14c\uc2a4\ud2b8\uc758 \ub9ce\uc740 \ubb38\uc81c\ub4e4\uc740 \uadf8\ub798\ud504 \ub610\ub294 \ud2b8\ub9ac \uad6c\uc870\ub97c \uae30\ubc18\uc73c\ub85c \ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubb38\uc81c\ub97c \ud574\uacb0\ud558\ub294 \ub370 \uc720\uc6a9\ud55c \uc54c\uace0\ub9ac\uc998 \uc911 \ud558\ub098\uac00 \uae4a\uc774 \uc6b0\uc120 \ud0d0\uc0c9(Depth-First Search, DFS)\uc785\ub2c8\ub2e4. \uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 DFS\uc758 \uac1c\ub150\uacfc \uc790\ubc14\ub85c \uad6c\ud604\ud558\ub294 \ubc29\ubc95\uc744 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. 1. \uae4a\uc774 \uc6b0\uc120 \ud0d0\uc0c9(DFS)\ub780? \uae4a\uc774 \uc6b0\uc120 \ud0d0\uc0c9\uc740 \uadf8\ub798\ud504 \ud0d0\uc0c9 \uc54c\uace0\ub9ac\uc998\uc758 \uc77c\uc885\uc73c\ub85c, \uac00\ub2a5\ud55c \ud55c \uae4a\uc774 \ub4e4\uc5b4\uac00\uba74\uc11c \ub178\ub4dc\ub97c \ud0d0\uc0c9\ud558\ub294 \ubc29\ubc95\uc785\ub2c8\ub2e4. \uc989, \ud55c \uac08\ub798\ub85c \uacc4\uc18d \ub098\uc544\uac00\ub2e4\uac00 \ub354 &hellip; <a href=\"https:\/\/atmokpo.com\/w\/26742\/\" class=\"more-link\">\ub354 \ubcf4\uae30<span class=\"screen-reader-text\"> &#8220;\uc790\ubc14 \ucf54\ub529\ud14c\uc2a4\ud2b8 \uac15\uc88c, \uae4a\uc774 \uc6b0\uc120 \ud0d0\uc0c9&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[22],"tags":[],"class_list":["post-26742","post","type-post","status-publish","format-standard","hentry","category-22"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.2 - 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