\uc774 \uae00\uc5d0\uc11c\ub294 \uc2a4\uc704\ud504\ud2b8\ub97c \uc774\uc6a9\ud558\uc5ec \ud2b9\uc815 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc8fc\uc81c\ub294 \ub0b4\ub9bc\ucc28\uc21c\uc73c\ub85c \uc790\ub9bf\uc218 \uc815\ub82c\ud558\uae30<\/strong> \uc785\ub2c8\ub2e4. \uc774 \ubb38\uc81c\ub97c \ud1b5\ud574 \ubb38\uc790\uc5f4 \ucc98\ub9ac, \uc815\ub82c \uc54c\uace0\ub9ac\uc998, \uadf8\ub9ac\uace0 \uc2a4\uc704\ud504\ud2b8\uc758 \uc790\ub8cc\ud615 \ub2e4\ub8e8\uae30 \uc5f0\uc2b5\uc744 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n \uc8fc\uc5b4\uc9c4 \uc815\uc218 \ubc30\uc5f4\uc774 \uc788\uc744 \ub54c, \uac01 \uc815\uc218\ub97c \ubb38\uc790\uc5f4\ub85c \ubcc0\ud658\ud55c \ub2e4\uc74c, \uc790\ub9bf\uc218\ub97c \ub0b4\ub9bc\ucc28\uc21c\uc73c\ub85c \uc815\ub82c\ud558\uc5ec \uacb0\uacfc\ub97c \ubc18\ud658\ud558\ub294 \ud568\uc218\ub97c \uc791\uc131\ud558\uc138\uc694. \uc608\ub97c \ub4e4\uc5b4, \ubc30\uc5f4\uc774 \uc774 \ubb38\uc81c\ub97c \ud478\ub294 \uacfc\uc815\uc740 \ub2e4\uc74c\uacfc \uac19\uc740 \ub2e8\uacc4\ub85c \ub098\ub20c \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n \uc5b4\ub5a4 \uc815\uc218\ub97c \ubb38\uc790\uc5f4\ub85c \ubcc0\ud658\ud558\uae30 \uc704\ud574\uc11c\ub294 \uc2a4\uc704\ud504\ud2b8\uc758 \ubb38\uc790\uc5f4\uc744 \uc815\ub82c\ud560 \ub54c\ub294 \uc815\ub82c\uc774 \uc644\ub8cc\ub41c \ubb38\uc790\uc5f4 \ubc30\uc5f4\uc744 \uacb0\uacfc\ub85c \ubc18\ud658\ud558\uba74 \ub429\ub2c8\ub2e4. \ucd5c\uc885 \uad6c\ud604\uc740 \ub2e4\uc74c\uacfc \uac19\uc740 \ud615\ud0dc\uac00 \ub420 \uac83\uc785\ub2c8\ub2e4.<\/p>\n \uc704\uc758 \uc2a4\uc704\ud504\ud2b8 \ud568\uc218\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \ubc29\uc2dd\uc73c\ub85c \uc791\ub3d9\ud569\ub2c8\ub2e4:<\/p>\n \ud568\uc218\uac00 \uc81c\ub300\ub85c \uc791\ub3d9\ud558\ub294\uc9c0 \ud655\uc778\ud558\uae30 \uc704\ud574 \uba87 \uac00\uc9c0 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4\ub97c \uc2e4\ud589\ud574 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc544\ub798\ub294 \ud574\ub2f9 \ud568\uc218\ub97c \ud65c\uc6a9\ud55c \uba87 \uac00\uc9c0 \ud14c\uc2a4\ud2b8 \ucf54\ub4dc \uc608\uc2dc\uc785\ub2c8\ub2e4.<\/p>\n \uc774\ubc88 \uae00\uc5d0\uc11c\ub294 \uc2a4\uc704\ud504\ud2b8\ub85c \uc815\uc218\ub97c \ubb38\uc790\uc5f4\ub85c \ubcc0\ud658\ud55c \ud6c4 \uc790\ub9bf\uc218\ub97c \uae30\uc900\uc73c\ub85c \ub0b4\ub9bc\ucc28\uc21c\uc73c\ub85c \uc815\ub82c\ud558\ub294 \ubb38\uc81c\ub97c \ub2e4\ub904\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ubb38\uc790\uc5f4 \ucc98\ub9ac \ubc0f \uc815\ub82c \uc54c\uace0\ub9ac\uc998\uc5d0 \ub300\ud55c \uc774\ud574\ub97c \ub192\uc774\ub294 \ub370 \uc720\uc6a9\ud55c \uc5f0\uc2b5\uc774\uc5c8\uc2b5\ub2c8\ub2e4. \uc774\uc640 \uac19\uc740 \ubb38\uc81c\ub4e4\uc740 \ucf54\ub529 \ud14c\uc2a4\ud2b8\uc5d0\uc11c \uc790\uc8fc \ucd9c\uc81c\ub418\uba70 \uc2e4\uc804\uc5d0\uc11c \uc720\uc6a9\ud558\uac8c \ud65c\uc6a9\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n \ucf54\ub4dc \uad6c\ud604 \uacfc\uc815\uc744 \ud1b5\ud574 \uc2a4\uc704\ud504\ud2b8\uc758 \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ud65c\uc6a9\ud560 \uc218 \uc788\uc73c\uba70, \ubb38\uc81c \ud574\uacb0 \ub2a5\ub825\uc744 \ud5a5\uc0c1\ud558\ub294 \ub370 \ud070 \ub3c4\uc6c0\uc774 \ub418\uae30\ub97c \ubc14\ub78d\ub2c8\ub2e4. \ub2e4\uc74c \uac15\uc88c\uc5d0\uc11c\ub3c4 \ub354\uc6b1 \ud765\ubbf8\ub85c\uc6b4 \ubb38\uc81c\ub97c \ub2e4\ub8e8\uc5b4 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4!<\/p>\n <\/body><\/p>\n","protected":false},"excerpt":{"rendered":"\ubb38\uc81c \uc124\uba85<\/h2>\n
[321, 123, 456]<\/code>\uc774\ub77c\uba74, \uac01 \uc815\uc218\ub97c \ubb38\uc790\uc5f4\ub85c \ubcc0\ud658\ud558\uc5ec [\"321\", \"123\", \"456\"]<\/code>\ub85c \ub9cc\ub4e4\uace0, \uc774\ub97c \ub0b4\ub9bc\ucc28\uc21c\uc73c\ub85c \uc815\ub82c\ud558\uc5ec [\"321\", \"456\", \"123\"]<\/code>\ub97c \ubc18\ud658\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\ubb38\uc81c \uc608\uc2dc<\/h2>\n
\n
[321, 123, 456]<\/code> \u2192 \ucd9c\ub825: [\"321\", \"456\", \"123\"]<\/code><\/li>\n[12, 345, 7, 89]<\/code> \u2192 \ucd9c\ub825: [\"89\", \"7\", \"345\", \"12\"]<\/code><\/li>\n[10, 2, 1]<\/code> \u2192 \ucd9c\ub825: [\"2\", \"10\", \"1\"]<\/code><\/li>\n<\/ul>\n\ubb38\uc81c \uc811\uadfc\ubc95<\/h2>\n
\n
1\ub2e8\uacc4: \uc815\uc218 \ubc30\uc5f4\uc744 \ubb38\uc790\uc5f4 \ubc30\uc5f4\ub85c \ubcc0\ud658\ud558\uae30<\/h3>\n
String()<\/code> \ucd08\uae30\ud654\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ubc30\uc5f4 \ub0b4 \ubaa8\ub4e0 \uc815\uc218\ub97c \ubb38\uc790\uc5f4\ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubcc0\ud658\uc740 map()<\/code> \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc27d\uac8c \uc218\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n2\ub2e8\uacc4: \ubb38\uc790\uc5f4\uc744 \ub0b4\ub9bc\ucc28\uc21c\uc73c\ub85c \uc815\ub82c\ud558\uae30<\/h3>\n
sorted(by:)<\/code> \uba54\uc18c\ub4dc\ub97c \uc774\uc6a9\ud558\uc5ec \uc0ac\uc6a9\uc790 \uc815\uc758 \uc815\ub82c \ub85c\uc9c1\uc744 \uc81c\uacf5\ud574\uc57c \ud569\ub2c8\ub2e4. \uc774\ub54c, \uac01 \ubb38\uc790\uc5f4\uc758 \uae38\uc774\ub97c \ube44\uad50\ud558\uac70\ub098, \uae38\uc774\uac00 \uac19\uc744 \uacbd\uc6b0 \uc0ac\uc804\uc2dd(lexicographical)\uc73c\ub85c \ube44\uad50\ud558\ub294 \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n3\ub2e8\uacc4: \uc815\ub82c\ub41c \uacb0\uacfc \ubc18\ud658\ud558\uae30<\/h3>\n
\uc2a4\uc704\ud504\ud2b8 \ucf54\ub4dc \uad6c\ud604<\/h2>\n
func sortDigitsDescending(_ numbers: [Int]) -> [String] {\n \/\/ 1\ub2e8\uacc4: \uc815\uc218\ub97c \ubb38\uc790\uc5f4\ub85c \ubcc0\ud658\n let stringNumbers = numbers.map { String($0) }\n \n \/\/ 2\ub2e8\uacc4: \ubb38\uc790\uc5f4\uc744 \ub0b4\ub9bc\ucc28\uc21c\uc73c\ub85c \uc815\ub82c (\uc790\ub9bf\uc218 \uc6b0\uc120)\n let sortedNumbers = stringNumbers.sorted { \n (lhs, rhs) in\n if lhs.count != rhs.count {\n return lhs.count > rhs.count \/\/ \uc790\ub9bf\uc218 \ube44\uad50\n } else {\n return lhs > rhs \/\/ \uc790\ub9bf\uc218\uac00 \uac19\uc744 \uacbd\uc6b0 \uac12 \ube44\uad50\n }\n }\n \n \/\/ 3\ub2e8\uacc4: \uc815\ub82c\ub41c \uacb0\uacfc \ubc18\ud658\n return sortedNumbers\n }<\/code><\/pre>\n\ucf54\ub4dc \uc124\uba85<\/h2>\n
\n
numbers.map { String($0) }<\/code>: \uc8fc\uc5b4\uc9c4 \uc815\uc218 \ubc30\uc5f4\uc758 \uac01 \uc6d0\uc18c\ub97c \ubb38\uc790\uc5f4\ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4.<\/li>\nsorted { ... }<\/code>: \uc0ac\uc6a9\uc790 \uc815\uc758 \uc815\ub82c \ub85c\uc9c1\uc744 \uc801\uc6a9\ud558\uc5ec \ub0b4\ub9bc\ucc28\uc21c\uc73c\ub85c \uc815\ub82c\ud569\ub2c8\ub2e4. \uc790\ub9bf\uc218\uac00 \ub2e4\ub974\ub2e4\uba74 \uc790\ub9bf\uc218\ub97c \uc6b0\uc120\ud558\uc5ec \ube44\uad50\ud558\uace0, \uac19\ub2e4\uba74 \ubb38\uc790\uc5f4\uc758 \uac12\uc744 \ube44\uad50\ud569\ub2c8\ub2e4.<\/li>\n\ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4<\/h2>\n
let testCase1 = [321, 123, 456]\nlet result1 = sortDigitsDescending(testCase1)\nprint(result1) \/\/ [\"321\", \"456\", \"123\"]\n\nlet testCase2 = [12, 345, 7, 89]\nlet result2 = sortDigitsDescending(testCase2)\nprint(result2) \/\/ [\"89\", \"7\", \"345\", \"12\"]\n\nlet testCase3 = [10, 2, 1]\nlet result3 = sortDigitsDescending(testCase3)\nprint(result3) \/\/ [\"2\", \"10\", \"1\"]<\/code><\/pre>\n\uacb0\ub860<\/h2>\n