{"id":27740,"date":"2024-10-27T14:43:31","date_gmt":"2024-10-27T14:43:31","guid":{"rendered":"http:\/\/atmokpo.com\/w\/?p=27740"},"modified":"2024-11-26T07:15:42","modified_gmt":"2024-11-26T07:15:42","slug":"c-%ec%bd%94%eb%94%a9%ed%85%8c%ec%8a%a4%ed%8a%b8-%ea%b0%95%ec%a2%8c-%ec%b5%9c%ec%86%8c-%ea%b3%b5%eb%b0%b0%ec%88%98-%ea%b5%ac%ed%95%98%ea%b8%b0-2","status":"publish","type":"post","link":"https:\/\/atmokpo.com\/w\/27740\/","title":{"rendered":"C++ \ucf54\ub529\ud14c\uc2a4\ud2b8 \uac15\uc88c, \ucd5c\uc18c \uacf5\ubc30\uc218 \uad6c\ud558\uae30"},"content":{"rendered":"

<\/p>\n

1. \ubb38\uc81c \uc124\uba85<\/h2>\n

\uc8fc\uc5b4\uc9c4 \ub450 \uc815\uc218 A\uc640 B\uc5d0 \ub300\ud574 A\uc640 B\uc758 \ucd5c\uc18c \uacf5\ubc30\uc218(Least Common Multiple, LCM)\ub97c \uad6c\ud558\ub294 \ubb38\uc81c\uc785\ub2c8\ub2e4. \ucd5c\uc18c \uacf5\ubc30\uc218\ub294 \ub450 \uc218\uc758 \ubc30\uc218 \uc911\uc5d0\uc11c \uac00\uc7a5 \uc791\uc740 \uc218\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, 4\uc640 5\uc758 \ucd5c\uc18c \uacf5\ubc30\uc218\ub294 20\uc785\ub2c8\ub2e4.<\/p>\n

2. \uc785\ub825 \ud615\uc2dd<\/h2>\n

\uccab \ubc88\uc9f8 \uc904\uc5d0 \uc815\uc218 A\uc640 B\uac00 \uc8fc\uc5b4\uc9d1\ub2c8\ub2e4. (1 \u2264 A, B \u2264 106<\/sup>)<\/p>\n

3. \ucd9c\ub825 \ud615\uc2dd<\/h2>\n

\uc8fc\uc5b4\uc9c4 \uc815\uc218 A\uc640 B\uc758 \ucd5c\uc18c \uacf5\ubc30\uc218\ub97c \ucd9c\ub825\ud569\ub2c8\ub2e4.<\/p>\n

4. \ubb38\uc81c \uc608\uc2dc<\/h2>\n
\n    \uc785\ub825:\n    4 5\n\n    \ucd9c\ub825:\n    20\n    <\/pre>\n
5. \uc54c\uace0\ub9ac\uc998 \uc124\uacc4<\/h2>\n
\ucd5c\uc18c \uacf5\ubc30\uc218\ub97c \uad6c\ud558\ub294 \uc77c\ubc18\uc801\uc778 \ubc29\ubc95\uc740 \ub450 \uc218\uc758 \ucd5c\ub300 \uacf5\uc57d\uc218\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \uc774\ub860\uc785\ub2c8\ub2e4.<\/p>\n
\ucd5c\uc18c \uacf5\ubc30\uc218\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \uacc4\uc0b0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n
\n    LCM(A, B) = (A * B) \/ GCD(A, B)\n    <\/pre>\n
\uc5ec\uae30\uc11c GCD\ub294 \ucd5c\ub300 \uacf5\uc57d\uc218(Greatest Common Divisor)\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc774\ub97c \uacc4\uc0b0\ud558\uae30 \uc704\ud574 \uc720\ud074\ub9ac\ub4dc \uc54c\uace0\ub9ac\uc998\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
5.1 \uc720\ud074\ub9ac\ub4dc \uc54c\uace0\ub9ac\uc998<\/h3>\n
\uc720\ud074\ub9ac\ub4dc \uc54c\uace0\ub9ac\uc998\uc740 \ub450 \uc218\uc758 GCD\ub97c \uad6c\ud558\uae30 \uc704\ud55c \uace0\uc804\uc801\uc778 \ubc29\ubc95\uc73c\ub85c, \ub2e4\uc74c\uacfc \uac19\uc774 \uc791\ub3d9\ud569\ub2c8\ub2e4:<\/p>\n
    \n
  1. \ub450 \uc218 A\uc640 B \uc911\uc5d0\uc11c B\uac00 0\uc774 \uc544\ub2d0 \uacbd\uc6b0, A\ub97c B\ub85c \ub098\ub208 \ub098\uba38\uc9c0\ub97c C\ub85c \uc800\uc7a5\ud569\ub2c8\ub2e4.<\/li>\n
  2. A\ub97c B\ub85c, B\ub97c C\ub85c \uc5c5\ub370\uc774\ud2b8\ud569\ub2c8\ub2e4.<\/li>\n
  3. \uc774 \uacfc\uc815\uc744 B\uac00 0\uc774 \ub420 \ub54c\uae4c\uc9c0 \ubc18\ubcf5\ud569\ub2c8\ub2e4.<\/li>\n
  4. \ucd5c\uc885\uc801\uc73c\ub85c A\uac00 GCD\uc785\ub2c8\ub2e4.<\/li>\n<\/ol>\n
    6. C++ \ucf54\ub4dc \uad6c\ud604<\/h2>\n
    \uc774\uc81c \ucd5c\uc885\uc801\uc73c\ub85c C++\uc5d0\uc11c \ucd5c\uc18c \uacf5\ubc30\uc218\ub97c \uad6c\ud558\ub294 \ucf54\ub4dc\ub97c \uad6c\ud604\ud574\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n
    \n#include <iostream>\nusing namespace std;\n\n\/\/ \ucd5c\ub300 \uacf5\uc57d\uc218 (GCD) \uacc4\uc0b0\nint gcd(int a, int b) {\n    while (b != 0) {\n        int temp = b;\n        b = a % b;\n        a = temp;\n    }\n    return a;\n}\n\n\/\/ \ucd5c\uc18c \uacf5\ubc30\uc218 (LCM) \uacc4\uc0b0\nint lcm(int a, int b) {\n    return (a * b) \/ gcd(a, b);\n}\n\nint main() {\n    int A, B;\n    cout << \"\ub450 \uc815\uc218 A\uc640 B\ub97c \uc785\ub825\ud558\uc138\uc694: \";\n    cin >> A >> B;\n\n    int result = lcm(A, B);\n    cout << \"\ucd5c\uc18c \uacf5\ubc30\uc218\ub294: \" << result << endl;\n    return 0;\n}\n    <\/code><\/pre>\n
    7. \ucf54\ub4dc \uc124\uba85<\/h2>\n
    \uc704 \ucf54\ub4dc\ub294 \uc138 \uac00\uc9c0 \uc8fc\uc694 \ubd80\ubd84\uc73c\ub85c \ub098\ub20c \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n
      \n
    1. gcd \ud568\uc218:<\/strong> \ub450 \uc815\uc218 A\uc640 B\uc758 \ucd5c\ub300 \uacf5\uc57d\uc218\ub97c \uacc4\uc0b0\ud569\ub2c8\ub2e4.<\/li>\n
    2. lcm \ud568\uc218:<\/strong> \ub450 \uc815\uc218\uc758 \ucd5c\uc18c \uacf5\ubc30\uc218\ub97c \uacc4\uc0b0\ud558\ub294 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.<\/li>\n
    3. main \ud568\uc218:<\/strong> \ud504\ub85c\uadf8\ub7a8\uc758 \uc9c4\uc785\uc810\uc73c\ub85c, \uc0ac\uc6a9\uc790\ub85c\ubd80\ud130 \uc785\ub825\uc744 \ubc1b\uc544 \ucd5c\uc18c \uacf5\ubc30\uc218\ub97c \ucd9c\ub825\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n
      8. \ud14c\uc2a4\ud2b8 \ubc0f \uac80\uc99d<\/h2>\n
      \ucf54\ub4dc\ub97c \uc2e4\uc81c\ub85c \ud14c\uc2a4\ud2b8\ud558\uae30 \uc704\ud574 \ub2e4\uc591\ud55c \uc785\ub825 \uac12\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc62c\ubc14\ub978 \uacb0\uacfc\ub97c \uac80\uc99d\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n
      \n    \uc785\ub825: 4 5\n    \ucd9c\ub825: 20\n\n    \uc785\ub825: 12 15\n    \ucd9c\ub825: 60\n\n    \uc785\ub825: 7 3\n    \ucd9c\ub825: 21\n\n    \uc785\ub825: 21 14\n    \ucd9c\ub825: 42\n\n    \uc785\ub825: 1 1000000\n    \ucd9c\ub825: 1000000\n    <\/pre>\n
      \uc774\ub7ec\ud55c \ub2e4\uc591\ud55c \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4\ub97c \ud1b5\ud574 \ucf54\ub4dc\uc758 \uc815\ud655\uc131\uacfc \uc548\uc815\uc131\uc744 \uac80\uc99d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
      9. \uc131\ub2a5 \uace0\ub824<\/h2>\n
      \ucd5c\uc18c \uacf5\ubc30\uc218 \uacc4\uc0b0\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ub450 \uc218\uc758 \uacf1\uc758 \uac12\uc744 \ucd5c\ub300 \uacf5\uc57d\uc218\ub85c \ub098\ub204\uae30 \ub54c\ubb38\uc5d0, \uc2e4\uc81c \uc131\ub2a5\uc740 GCD \uc54c\uace0\ub9ac\uc998\uc758 \uc131\ub2a5\uc5d0 \ud070 \uc601\ud5a5\uc744 \ubc1b\uc2b5\ub2c8\ub2e4. \uc720\ud074\ub9ac\ub4dc \uc54c\uace0\ub9ac\uc998\uc740 O(log(min(A, B)))\uc758 \uc2dc\uac04 \ubcf5\uc7a1\ub3c4\ub97c \uac00\uc9c0\ubbc0\ub85c, \uc785\ub825 \ud06c\uae30\uc5d0 \ube44\ub840\ud558\uc5ec \ud6a8\uc728\uc801\uc73c\ub85c \ub3d9\uc791\ud569\ub2c8\ub2e4.<\/p>\n
      10. \uacb0\ub860<\/h2>\n
      \uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ub450 \uc815\uc218\uc758 \ucd5c\uc18c \uacf5\ubc30\uc218\ub97c \uad6c\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \uc720\ud074\ub9ac\ub4dc \uc54c\uace0\ub9ac\uc998\uc744 \uc774\uc6a9\ud55c \ucd5c\ub300 \uacf5\uc57d\uc218 \uacc4\uc0b0\uacfc \uc774\ub97c \ud65c\uc6a9\ud55c \ucd5c\uc18c \uacf5\ubc30\uc218 \uacc4\uc0b0 \ubc29\ubc95\uc744 \ubc30\uc6e0\uc2b5\ub2c8\ub2e4. \uc774 \uc54c\uace0\ub9ac\uc998\uc740 \ub2e4\uc591\ud55c \ubb38\uc81c \ud574\uacb0\uc5d0 \uc751\uc6a9\ub420 \uc218 \uc788\uc73c\ubbc0\ub85c, \uc720\uc6a9\ud55c \uae30\ucd08 \uc9c0\uc2dd\uc774 \ub420 \uac83\uc785\ub2c8\ub2e4.<\/p>\n
      <\/body><\/p>\n","protected":false},"excerpt":{"rendered":"
      1. \ubb38\uc81c \uc124\uba85 \uc8fc\uc5b4\uc9c4 \ub450 \uc815\uc218 A\uc640 B\uc5d0 \ub300\ud574 A\uc640 B\uc758 \ucd5c\uc18c \uacf5\ubc30\uc218(Least Common Multiple, LCM)\ub97c \uad6c\ud558\ub294 \ubb38\uc81c\uc785\ub2c8\ub2e4. \ucd5c\uc18c \uacf5\ubc30\uc218\ub294 \ub450 \uc218\uc758 \ubc30\uc218 \uc911\uc5d0\uc11c \uac00\uc7a5 \uc791\uc740 \uc218\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, 4\uc640 5\uc758 \ucd5c\uc18c \uacf5\ubc30\uc218\ub294 20\uc785\ub2c8\ub2e4. 2. \uc785\ub825 \ud615\uc2dd \uccab \ubc88\uc9f8 \uc904\uc5d0 \uc815\uc218 A\uc640 B\uac00 \uc8fc\uc5b4\uc9d1\ub2c8\ub2e4. (1 \u2264 A, B \u2264 106) 3. \ucd9c\ub825 \ud615\uc2dd \uc8fc\uc5b4\uc9c4 … \ub354 \ubcf4\uae30 “C++ \ucf54\ub529\ud14c\uc2a4\ud2b8 \uac15\uc88c, \ucd5c\uc18c \uacf5\ubc30\uc218 \uad6c\ud558\uae30”<\/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":[25],"tags":[],"class_list":["post-27740","post","type-post","status-publish","format-standard","hentry","category-c---2"],"yoast_head":"\nC++ \ucf54\ub529\ud14c\uc2a4\ud2b8 \uac15\uc88c, \ucd5c\uc18c \uacf5\ubc30\uc218 \uad6c\ud558\uae30 - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8<\/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:\/\/atmokpo.com\/w\/27740\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C++ \ucf54\ub529\ud14c\uc2a4\ud2b8 \uac15\uc88c, \ucd5c\uc18c \uacf5\ubc30\uc218 \uad6c\ud558\uae30 - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8\" \/>\n<meta property=\"og:description\" content=\"1. \ubb38\uc81c \uc124\uba85 \uc8fc\uc5b4\uc9c4 \ub450 \uc815\uc218 A\uc640 B\uc5d0 \ub300\ud574 A\uc640 B\uc758 \ucd5c\uc18c \uacf5\ubc30\uc218(Least Common Multiple, LCM)\ub97c \uad6c\ud558\ub294 \ubb38\uc81c\uc785\ub2c8\ub2e4. \ucd5c\uc18c \uacf5\ubc30\uc218\ub294 \ub450 \uc218\uc758 \ubc30\uc218 \uc911\uc5d0\uc11c \uac00\uc7a5 \uc791\uc740 \uc218\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, 4\uc640 5\uc758 \ucd5c\uc18c \uacf5\ubc30\uc218\ub294 20\uc785\ub2c8\ub2e4. 2. \uc785\ub825 \ud615\uc2dd \uccab \ubc88\uc9f8 \uc904\uc5d0 \uc815\uc218 A\uc640 B\uac00 \uc8fc\uc5b4\uc9d1\ub2c8\ub2e4. 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