{"id":27517,"date":"2024-10-27T14:12:18","date_gmt":"2024-10-27T14:12:18","guid":{"rendered":"http:\/\/atmokpo.com\/w\/?p=27517"},"modified":"2024-11-26T07:17:36","modified_gmt":"2024-11-26T07:17:36","slug":"c-%ec%bd%94%eb%94%a9%ed%85%8c%ec%8a%a4%ed%8a%b8-%ea%b0%95%ec%a2%8c-%ed%80%b5-%ec%a0%95%eb%a0%ac","status":"publish","type":"post","link":"https:\/\/atmokpo.com\/w\/27517\/","title":{"rendered":"C# \ucf54\ub529\ud14c\uc2a4\ud2b8 \uac15\uc88c, \ud035 \uc815\ub82c"},"content":{"rendered":"<article>\n<p>\ucf54\ub529 \ud14c\uc2a4\ud2b8\uc5d0\uc11c \uc790\uc8fc \ucd9c\uc81c\ub418\ub294 \uae30\ubcf8 \uc790\ub8cc\uad6c\uc870 \ubc0f \uc54c\uace0\ub9ac\uc998 \ubb38\uc81c\ub4e4\uc744 \ud480\uc5b4\ubcf4\ub294 \uacfc\uc815\uc5d0\uc11c, \ud6a8\uc728\uc801\uc778 \uc815\ub82c \uc54c\uace0\ub9ac\uc998\uc758 \uc911\uc694\uc131\uc744 \uae68\ub2eb\uac8c \ub429\ub2c8\ub2e4. \uc624\ub298\uc740 C#\ub97c \uae30\ubc18\uc73c\ub85c \ud035 \uc815\ub82c(Quick Sort) \uc54c\uace0\ub9ac\uc998\uc5d0 \ub300\ud574 \uae4a\uc774 \uc788\uac8c \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\ud035 \uc815\ub82c\uc774\ub780?<\/h2>\n<p>\ud035 \uc815\ub82c\uc740 \ubd84\ud560 \uc815\ubcf5(Divide and Conquer) \uc804\ub7b5\uc744 \uc774\uc6a9\ud55c \ud6a8\uc728\uc801\uc774\uace0 \ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \uc815\ub82c \uc54c\uace0\ub9ac\uc998\uc785\ub2c8\ub2e4. \ud3c9\uade0\uc801\uc778 \uacbd\uc6b0 O(n log n)\uc758 \uc2dc\uac04 \ubcf5\uc7a1\ub3c4\ub97c \uac00\uc9c0\uba70, \ucd5c\uc545\uc758 \uacbd\uc6b0 O(n\u00b2)\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ud3c9\uade0\uc801\uc73c\ub85c \ub9e4\uc6b0 \ube60\ub974\uae30 \ub54c\ubb38\uc5d0 \uc77c\ubc18\uc801\uc73c\ub85c \uac00\uc7a5 \ub9ce\uc774 \uc0ac\uc6a9\ub418\ub294 \uc815\ub82c \uc54c\uace0\ub9ac\uc998 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4.<\/p>\n<h3>\ud035 \uc815\ub82c\uc758 \uc791\ub3d9 \uc6d0\ub9ac<\/h3>\n<p>\ud035 \uc815\ub82c\uc740 \uc8fc\uc5b4\uc9c4 \ubc30\uc5f4\uc5d0\uc11c \ud53c\ubc97(Pivot)\uc774\ub77c\ub294 \uae30\uc900 \uac12\uc744 \uc815\ud558\uace0, \ud53c\ubc97\ubcf4\ub2e4 \uc791\uc740 \uac12\ub4e4\uc740 \ud53c\ubc97\uc758 \uc67c\ucabd\uc73c\ub85c, \ud53c\ubc97\ubcf4\ub2e4 \ud070 \uac12\ub4e4\uc740 \uc624\ub978\ucabd\uc73c\ub85c \ub098\ub204\ub294 \ubc29\uc2dd\uc73c\ub85c \ub3d9\uc791\ud569\ub2c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c \uc774 \uacfc\uc815\uc744 \uac01 \ubd84\ud560\ub41c \uc11c\ube0c \ubc30\uc5f4\uc5d0 \ub300\ud574 \uc7ac\uadc0\uc801\uc73c\ub85c \uc218\ud589\ud558\uc5ec \uc815\ub82c\ub41c \ubc30\uc5f4\uc744 \ub9cc\ub4ed\ub2c8\ub2e4. \ud035 \uc815\ub82c\uc758 \uc8fc\uc694 \ub2e8\uacc4\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<ol>\n<li>\ubc30\uc5f4\uc5d0\uc11c \ud53c\ubc97 \uac12\uc744 \uc120\ud0dd\ud569\ub2c8\ub2e4.<\/li>\n<li>\ud53c\ubc97\uc744 \uae30\uc900\uc73c\ub85c \ubc30\uc5f4\uc744 \ub450 \uac1c\uc758 \uc11c\ube0c \ubc30\uc5f4\ub85c \ubd84\ud560\ud569\ub2c8\ub2e4.<\/li>\n<li>\uac01 \uc11c\ube0c \ubc30\uc5f4\uc5d0 \ub300\ud574 \ud035 \uc815\ub82c\uc744 \uc7ac\uadc0\uc801\uc73c\ub85c \uc218\ud589\ud569\ub2c8\ub2e4.<\/li>\n<li>\uc7ac\uadc0 \ud638\ucd9c\uc774 \uc644\ub8cc\ub418\uba74, \uc815\ub82c\ub41c \ubc30\uc5f4\uc744 \ubcd1\ud569\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n<h2>\ubb38\uc81c: \uc815\uc218 \ubc30\uc5f4\uc744 \ud035 \uc815\ub82c\ub85c \uc815\ub82c\ud558\uae30<\/h2>\n<p>\uc8fc\uc5b4\uc9c4 \uc815\uc218 \ubc30\uc5f4\uc744 \ud035 \uc815\ub82c\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc815\ub82c\ud558\ub294 \ud504\ub85c\uadf8\ub7a8\uc744 \uc791\uc131\ud558\uc138\uc694. \ubc30\uc5f4\uc758 \ud06c\uae30\ub294 1\ubd80\ud130 10,000\uae4c\uc9c0\uc758 \uc815\uc218\uc774\uba70, \uc785\ub825\uc73c\ub85c \uc8fc\uc5b4\uc9c4 \ubc30\uc5f4\uc740 \uc784\uc758\uc758 \uc21c\uc11c\ub85c \ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p><strong>\uc785\ub825 \uc608\uc2dc:<\/strong><\/p>\n<pre>[3, 6, 8, 10, 1, 2, 1]<\/pre>\n<p><strong>\ucd9c\ub825 \uc608\uc2dc:<\/strong><\/p>\n<pre>[1, 1, 2, 3, 6, 8, 10]<\/pre>\n<h3>\ubb38\uc81c \ud480\uc774 \uacfc\uc815<\/h3>\n<p>\uc774\uc81c \uc704 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud55c \ud035 \uc815\ub82c \uc54c\uace0\ub9ac\uc998\uc744 C# \uc5b8\uc5b4\ub85c \uad6c\ud604\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<h4>1\ub2e8\uacc4: \ud53c\ubc97 \uc120\ud0dd\ud558\uae30<\/h4>\n<p>\uac00\uc7a5 \uac04\ub2e8\ud55c \ubc29\ubc95\uc740 \ubc30\uc5f4\uc758 \ub9c8\uc9c0\ub9c9 \uc694\uc18c\ub97c \ud53c\ubc97\uc73c\ub85c \uc120\ud0dd\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774\ub294 \uad6c\ud604\uc774 \uc27d\uace0, \ub300\ubd80\ubd84\uc758 \uacbd\uc6b0\uc5d0 \ub300\ud574 \uad1c\ucc2e\uc740 \uc131\ub2a5\uc744 \ubcf4\uc785\ub2c8\ub2e4.<\/p>\n<h4>2\ub2e8\uacc4: \ubc30\uc5f4 \ubd84\ud560\ud558\uae30<\/h4>\n<p>\ud53c\ubc97\uc744 \uae30\uc900\uc73c\ub85c \ub450 \uac1c\uc758 \uc11c\ube0c \ubc30\uc5f4\ub85c \ub098\ub204\uae30 \uc704\ud574 \ubc30\uc5f4\uc744 \uc21c\ud68c\ud558\uba70 \ud53c\ubc97\ubcf4\ub2e4 \uc791\uc740 \uac12\ub4e4\uc744 \uc67c\ucabd\uc73c\ub85c \uc62e\uae30\uace0, \uadf8\ub807\uc9c0 \uc54a\uc740 \uac12\ub4e4\uc740 \uc624\ub978\ucabd\uc5d0 \ub0a8\ub3c4\ub85d \ud569\ub2c8\ub2e4. \uc774\ub54c \ubc30\uc5f4\uc758 \uc21c\uc11c\ub97c \uc720\uc9c0\ud558\uba74\uc11c \ud544\uc694\ud55c \uc704\uce58\ub85c \uac12\uc744 \uc774\ub3d9\uc2dc\ucf1c\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h4>3\ub2e8\uacc4: \uc7ac\uadc0 \ud638\ucd9c\ud558\uae30<\/h4>\n<p>\uc11c\ube0c \ubc30\uc5f4\uc5d0 \ub300\ud574\uc11c\ub3c4 \ub3d9\uc77c\ud55c \uacfc\uc815\uc744 \ubc18\ubcf5\ud569\ub2c8\ub2e4.<\/p>\n<h4>4\ub2e8\uacc4: \uc644\uc131\ub41c \uc815\ub82c \ubc30\uc5f4 \ub9ac\ud134\ud558\uae30<\/h4>\n<p>\ubaa8\ub4e0 \uc7ac\uadc0 \ud638\ucd9c\uc774 \uc644\ub8cc\ub418\uba74, \uc815\ub82c\ub41c \ubc30\uc5f4\uc744 \ubc18\ud658\ud569\ub2c8\ub2e4.<\/p>\n<h3>C# \ucf54\ub4dc \uad6c\ud604<\/h3>\n<pre>\n    using System;\n\n    class QuickSort\n    {\n        static void Main(string[] args)\n        {\n            int[] arr = { 3, 6, 8, 10, 1, 2, 1 };\n            QuickSortAlgorithm(arr, 0, arr.Length - 1);\n            Console.WriteLine(\"\uc815\ub82c\ub41c \ubc30\uc5f4: \" + string.Join(\", \", arr));\n        }\n        \n        static void QuickSortAlgorithm(int[] arr, int low, int high)\n        {\n            if (low &lt; high)\n            {\n                int pivotIndex = Partition(arr, low, high);\n                QuickSortAlgorithm(arr, low, pivotIndex - 1);\n                QuickSortAlgorithm(arr, pivotIndex + 1, high);\n            }\n        }\n        \n        static int Partition(int[] arr, int low, int high)\n        {\n            int pivot = arr[high];\n            int i = low - 1;\n\n            for (int j = low; j &lt; high; j++)\n            {\n                if (arr[j] &lt; pivot)\n                {\n                    i++;\n                    Swap(arr, i, j);\n                }\n            }\n            Swap(arr, i + 1, high);\n            return i + 1;\n        }\n\n        static void Swap(int[] arr, int i, int j)\n        {\n            int temp = arr[i];\n            arr[i] = arr[j];\n            arr[j] = temp;\n        }\n    }\n    <\/pre>\n<h3>\ucf54\ub4dc \uc124\uba85<\/h3>\n<p>\uc704 \ucf54\ub4dc\ub294 C# \uc5b8\uc5b4\ub85c \uad6c\ud604\ud55c \ud035 \uc815\ub82c \uc54c\uace0\ub9ac\uc998\uc758 \uc608\uc2dc\uc785\ub2c8\ub2e4. \uac01 \ub2e8\uacc4\uc5d0 \ub300\ud55c \uc124\uba85\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<h4>1. Main \ud568\uc218<\/h4>\n<p>Main \ud568\uc218\uc5d0\uc11c\ub294 \ucd08\uae30 \ubc30\uc5f4\uc744 \uc815\uc758\ud558\uace0 \ud035 \uc815\ub82c \uc54c\uace0\ub9ac\uc998\uc744 \ud638\ucd9c\ud55c \ud6c4, \uc815\ub82c\ub41c \ubc30\uc5f4\uc744 \ucd9c\ub825\ud569\ub2c8\ub2e4.<\/p>\n<h4>2. QuickSortAlgorithm \ud568\uc218<\/h4>\n<p>\uc774 \ud568\uc218\ub294 \uc7ac\uadc0\uc801\uc73c\ub85c \ud638\ucd9c\ub418\ub294 \ud035 \uc815\ub82c\uc758 \ud575\uc2ec \ub85c\uc9c1\uc744 \ud3ec\ud568\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ub0ae\uc740 \uc778\ub371\uc2a4(low)\uc640 \ub192\uc740 \uc778\ub371\uc2a4(high)\ub97c \uc785\ub825\uc73c\ub85c \ubc1b\uc544\uc11c, \uc774 \uc778\ub371\uc2a4\uc758 \ubc94\uc704 \ub0b4\uc5d0\uc11c \ubc30\uc5f4\uc744 \uc815\ub82c\ud569\ub2c8\ub2e4.<\/p>\n<h4>3. Partition \ud568\uc218<\/h4>\n<p>\uc774 \ud568\uc218\ub294 \ud53c\ubc97\uc744 \uae30\uc900\uc73c\ub85c \ubc30\uc5f4\uc744 \ubd84\ud560\ud569\ub2c8\ub2e4. \ud53c\ubc97\ubcf4\ub2e4 \uc791\uc740 \uac12\uc744 \uc67c\ucabd\uc73c\ub85c \uc62e\uae30\uace0, \ub9c8\uc9c0\ub9c9\uc5d0 \ud53c\ubc97\uc744 \uc801\uc808\ud55c \uc704\uce58\uc5d0 \ub193\uc2b5\ub2c8\ub2e4. \uc774\ub54c \ud53c\ubc97\uacfc \uad00\ub828\ub41c \uacb0\uacfc \uc778\ub371\uc2a4\ub97c \ubc18\ud658\ud569\ub2c8\ub2e4.<\/p>\n<h4>4. Swap \ud568\uc218<\/h4>\n<p>\ubc30\uc5f4\uc758 \ub450 \uc694\uc18c\ub97c \uc11c\ub85c \uad50\ud658\ud558\ub294 \ud568\uc218\uc785\ub2c8\ub2e4. \uc815\ub82c \uacfc\uc815\uc5d0\uc11c \ubc30\uc5f4\uc758 \uc21c\uc11c\ub97c \uc720\uc9c0\ud558\uae30 \uc704\ud574 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n<h2>\uc2dc\uac04 \ubcf5\uc7a1\ub3c4 \ubd84\uc11d<\/h2>\n<p>\ud035 \uc815\ub82c\uc758 \uc2dc\uac04 \ubcf5\uc7a1\ub3c4\ub294 \uacbd\uc6b0\uc5d0 \ub530\ub77c \ub2e4\ub985\ub2c8\ub2e4:<\/p>\n<ul>\n<li><strong>\ucd5c\uc120\uc758 \uacbd\uc6b0:<\/strong> O(n log n) &#8211; \ubc30\uc5f4\uc774 \uc774\ubbf8 \uc815\ub82c\ub41c \uacbd\uc6b0.<\/li>\n<li><strong>\ud3c9\uade0\uc801\uc778 \uacbd\uc6b0:<\/strong> O(n log n) &#8211; \ub2e4\uc591\ud55c \uc0c1\ud669\uc5d0 \ub300\ud55c \uc608\uc0c1.<\/li>\n<li><strong>\ucd5c\uc545\uc758 \uacbd\uc6b0:<\/strong> O(n\u00b2) &#8211; \ubc30\uc5f4\uc774 \ub0b4\ub9bc\ucc28\uc21c\uc73c\ub85c \uc815\ub82c\ub418\uc5b4 \uc788\uc744 \ub54c \ud53c\ubc97 \uc120\ud0dd\uc774 \ud56d\uc0c1 \ucd5c\uc545\uc73c\ub85c \uac00\ub294 \uacbd\uc6b0.<\/li>\n<\/ul>\n<p>\ud035 \uc815\ub82c\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ub9e4\uc6b0 \ud6a8\uc728\uc801\uc774\uba70, \ud3c9\uade0\uc801\uc778 \uacbd\uc6b0 \ube60\ub978 \uc131\ub2a5\uc744 \ubcf4\uc785\ub2c8\ub2e4. \ucd5c\uc545\uc758 \uacbd\uc6b0\ub97c \ud53c\ud558\uae30 \uc704\ud574 \ub2e4\uc591\ud55c \ud53c\ubc97 \uc120\ud0dd \ubc29\ubc95(\uc608: \ub79c\ub364 \ud53c\ubc97 \uc120\ud0dd)\uc774\ub098 3-way partitioning \ubc29\uc2dd\ub3c4 \ud65c\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n<h2>\ud035 \uc815\ub82c\uc758 \uc7a5\ub2e8\uc810<\/h2>\n<h3>\uc7a5\uc810<\/h3>\n<ul>\n<li>\ube60\ub978 \uc131\ub2a5: \ud3c9\uade0\uc801\uc73c\ub85c O(n log n) \uc2dc\uac04 \ubcf5\uc7a1\ub3c4\ub97c \uac00\uc9c0\uba70, \ub300\uc6a9\ub7c9 \ub370\uc774\ud130\uc5d0\ub3c4 \ud6a8\uc728\uc801\uc785\ub2c8\ub2e4.<\/li>\n<li>\uc81c\uc790\ub9ac \uc815\ub82c: \ucd94\uac00 \uba54\ubaa8\ub9ac \uc0ac\uc6a9\uc774 \uc801\uace0, \uc6d0\ubcf8 \ub370\uc774\ud130\ub97c \uc218\uc815\ud569\ub2c8\ub2e4.<\/li>\n<li>\uc7ac\uadc0\uc801 \uad6c\uc870: \uad6c\ud604\uc774 \uac04\ub2e8\ud558\uc5ec \ucf54\ub4dc\uac00 \uc9e7\uace0 \uba85\ud655\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h3>\ub2e8\uc810<\/h3>\n<ul>\n<li>\ucd5c\uc545\uc758 \uacbd\uc6b0 \uc131\ub2a5: \ud53c\ubc97 \uc120\ud0dd\uc5d0 \ub530\ub77c O(n\u00b2)\uc774 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li>\uc548\uc815\uc131 \ubd80\uc871: \uae30\ubcf8 \ud035 \uc815\ub82c\uc740 \uac19\uc740 \uac12\uc758 \uc21c\uc11c\ub97c \uc720\uc9c0\ud558\uc9c0 \uc54a\uc73c\ubbc0\ub85c \uc548\uc815 \uc815\ub82c\uc774 \uc544\ub2d9\ub2c8\ub2e4.<\/li>\n<li>\uc7ac\uadc0\uc801 \ud638\ucd9c\uc774 \ub9ce\uc544 \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc774 \uc99d\uac00\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>\uc5f0\uc2b5 \ubb38\uc81c<\/h2>\n<p>\uc774\uc81c \ud035 \uc815\ub82c\uc744 \uc774\ud574\ud588\uc73c\ub2c8, \uc544\ub798\uc758 \uc5f0\uc2b5 \ubb38\uc81c\ub97c \ud1b5\ud574 \ub354\uc6b1 \uae4a\uc774 \uc788\ub294 \uc774\ud574\ub97c \uac00\uc838\ubcf4\uc138\uc694.<\/p>\n<ol>\n<li>\ub2e4\uc591\ud55c \ud53c\ubc97 \uc120\ud0dd \uc804\ub7b5(\ucd5c\uc18c, \ucd5c\ub300, \uc911\uc559 \ub4f1)\uc744 \uc801\uc6a9\ud574 \ubcf4\uc138\uc694. \uac01 \uc804\ub7b5\uc758 \uc131\ub2a5 \ucc28\uc774\ub97c \ubd84\uc11d\ud558\uc138\uc694.<\/li>\n<li>\ud035 \uc815\ub82c\uc744 \uc0ac\uc6a9\ud558\uc5ec 2\ucc28\uc6d0 \ubc30\uc5f4\uc758 \ud589\uc744 \uc815\ub82c\ud558\ub294 \ud504\ub85c\uadf8\ub7a8\uc744 \uc791\uc131\ud574 \ubcf4\uc138\uc694.<\/li>\n<li>\ud035 \uc815\ub82c\uc744 \ubc18\ubcf5(iterative) \ubc29\uc2dd\uc73c\ub85c \uad6c\ud604\ud574 \ubcf4\uc138\uc694. \uc7ac\uadc0 \ud638\ucd9c \uc5c6\uc774 \uad6c\ud604\ud558\ub294 \ubc29\ubc95\uc744 \uc0dd\uac01\ud574 \ubcf4\uc138\uc694.<\/li>\n<\/ol>\n<h2>\uacb0\ub860<\/h2>\n<p>\ud035 \uc815\ub82c \uc54c\uace0\ub9ac\uc998\uc740 \ucf54\ub529 \ud14c\uc2a4\ud2b8\uc5d0\uc11c \uc790\uc8fc \ucd9c\uc81c\ub418\ub294 \uc8fc\uc81c \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \uc624\ub298 \uac15\uc88c\ub97c \ud1b5\ud574 \ud035 \uc815\ub82c\uc758 \uac1c\ub150, \ubb38\uc81c \uc774\ud574, \ucf54\ub4dc \uad6c\ud604 \ubc0f \uc2dc\uac04 \ubcf5\uc7a1\ub3c4 \ubd84\uc11d\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ud035 \uc815\ub82c\uc744 \uc644\uc804\ud788 \uc774\ud574\ud558\uac8c \ub41c\ub2e4\uba74, \ucde8\uc5c5 \uc900\ube44\ub294 \ubb3c\ub860, \ub354 \ub098\uc544\uac00 \ub2e4\uc591\ud55c \uc54c\uace0\ub9ac\uc998 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\ub294 \ub370\uc5d0\ub3c4 \ud070 \ub3c4\uc6c0\uc774 \ub420 \uac83\uc785\ub2c8\ub2e4. \ub2e4\uc591\ud55c \uc5f0\uc2b5 \ubb38\uc81c\ub97c \ud1b5\ud574 \ud035 \uc815\ub82c\uc744 \ub354\uc6b1 \uc219\ub2ec\ud574 \ubcf4\uc138\uc694!<\/p>\n<\/article>\n","protected":false},"excerpt":{"rendered":"<p>\ucf54\ub529 \ud14c\uc2a4\ud2b8\uc5d0\uc11c \uc790\uc8fc \ucd9c\uc81c\ub418\ub294 \uae30\ubcf8 \uc790\ub8cc\uad6c\uc870 \ubc0f \uc54c\uace0\ub9ac\uc998 \ubb38\uc81c\ub4e4\uc744 \ud480\uc5b4\ubcf4\ub294 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