{"id":24207,"date":"2024-10-25T14:13:47","date_gmt":"2024-10-25T14:13:47","guid":{"rendered":"https:\/\/atmokpo.com\/w\/?p=24207"},"modified":"2024-11-26T08:03:56","modified_gmt":"2024-11-26T08:03:56","slug":"%ed%8c%8c%ec%9d%b4%ec%8d%ac-%ea%b0%95%ec%a2%8c-3%ea%b3%bc-5%ec%9d%98-%eb%b0%b0%ec%88%98%eb%a5%bc-%eb%aa%a8%eb%91%90-%eb%8d%94%ed%95%98%ea%b8%b0","status":"publish","type":"post","link":"https:\/\/atmokpo.com\/w\/24207\/","title":{"rendered":"\ud30c\uc774\uc36c \uac15\uc88c: 3\uacfc 5\uc758 \ubc30\uc218\ub97c \ubaa8\ub450 \ub354\ud558\uae30"},"content":{"rendered":"\n

\ud504\ub85c\uadf8\ub798\ubc0d\uc744 \ubc30\uc6b0\uae30 \uc2dc\uc791\ud558\uba74 \uc22b\uc790\uc640 \uad00\ub828\ub41c \uac04\ub2e8\ud55c \ubb38\uc81c\ub4e4\ub85c \uc2dc\uc791\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubb38\uc81c\ub4e4\uc740 \uc54c\uace0\ub9ac\uc998\uacfc \ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\uc758 \uae30\ucd08\ub97c \uc774\ud574\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub418\uba70, \ub17c\ub9ac\uc801 \uc0ac\uace0\ub97c \ubc1c\uc804\uc2dc\ud0a4\ub294 \uc88b\uc740 \uc5f0\uc2b5\uc774 \ub429\ub2c8\ub2e4. \uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ud30c\uc774\uc36c\uc744 \uc0ac\uc6a9\ud558\uc5ec 3\uacfc 5\uc758 \ubc30\uc218\ub97c \ubaa8\ub450 \ub354\ud558\ub294 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\ub294 \ubc29\ubc95\uc744 \ud0d0\uad6c\ud574\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ubb38\uc81c \uc815\uc758<\/h2>\n\n\n\n

\uc6b0\ub9ac\uac00 \ud574\uacb0\ud558\uace0\uc790 \ud558\ub294 \ubb38\uc81c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4: \uc8fc\uc5b4\uc9c4 \uc591\uc758 \uc815\uc218 N\ubcf4\ub2e4 \uc791\uc740 \uc790\uc5f0\uc218 \uc911\uc5d0\uc11c 3 \ub610\ub294 5\uc758 \ubc30\uc218\ub97c \ubaa8\ub450 \ub354\ud558\ub77c.<\/strong><\/p>\n\n\n\n

\uc608\ub97c \ub4e4\uc5b4, N\uc774 10\uc778 \uacbd\uc6b0, 3\uc758 \ubc30\uc218\ub294 3, 6, 9\uc774\uace0 5\uc758 \ubc30\uc218\ub294 5\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c 3\uacfc 5\uc758 \ubc30\uc218\ub97c \ubaa8\ub450 \ub354\ud558\uba74 3 + 5 + 6 + 9 = 23\uc774 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\uae30\ubcf8\uc801\uc778 \uc811\uadfc\ubc95<\/h2>\n\n\n\n

\uc774 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud55c \uae30\ubcf8\uc801\uc778 \ubc29\ubc95\uc740 \ubc18\ubcf5\ubb38\uc744 \uc0ac\uc6a9\ud558\uc5ec 1\ubd80\ud130 N-1\uae4c\uc9c0\uc758 \ubaa8\ub4e0 \uc22b\uc790\ub97c \ud655\uc778\ud558\uace0, \uac01 \uc22b\uc790\uac00 3 \ub610\ub294 5\ub85c \ub098\ub204\uc5b4 \ub5a8\uc5b4\uc9c0\ub294\uc9c0 \uac80\uc0ac\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc22b\uc790\uac00 \uc870\uac74\uc5d0 \ub9de\ub2e4\uba74 \ud574\ub2f9 \uc22b\uc790\ub97c \ud569\uacc4\uc5d0 \ub354\ud569\ub2c8\ub2e4. \uac00\uc7a5 \uac04\ub2e8\ud55c \ud615\ud0dc\uc758 \ucf54\ub4dc\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n

\ndef sum_of_multiples(n):\n    total = 0\n    for i in range(n):\n        if i % 3 == 0 or i % 5 == 0:\n            total += i\n    return total\n<\/code><\/pre>\n\n\n\n
\uc704\uc758 \ucf54\ub4dc\ub294 \ub9e4\uc6b0 \uac04\ub2e8\ud569\ub2c8\ub2e4. `sum_of_multiples` \ud568\uc218\ub294 \uc815\uc218 `n`\uc744 \uc785\ub825\uc73c\ub85c \ubc1b\uace0, 0\ubd80\ud130 `n-1`\uae4c\uc9c0\uc758 \uc22b\uc790\ub4e4 \uc911 3 \ub610\ub294 5\uc758 \ubc30\uc218\uc778 \uc22b\uc790\ub4e4\uc758 \ud569\uc744 \uad6c\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubc29\ubc95\uc740 \ub300\ubd80\ubd84\uc758 \uacbd\uc6b0\uc5d0 \uc801\ud569\ud55c \uc131\ub2a5\uc744 \ubcf4\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n
\ud30c\uc774\uc36c \ubb38\ubc95 \uc124\uba85<\/h2>\n\n\n\n
\uc774\uc81c \uc6b0\ub9ac\uac00 \uc0ac\uc6a9\ud55c \ud30c\uc774\uc36c \ucf54\ub4dc\uc758 \uad6c\uc131 \uc694\uc18c\ub97c \ub354 \uc790\uc138\ud788 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n
1. \ud568\uc218 \uc815\uc758<\/h3>\n\n\n\n
\ud30c\uc774\uc36c\uc5d0\uc11c\ub294 `def` \ud0a4\uc6cc\ub4dc\ub97c \uc0ac\uc6a9\ud558\uc5ec \ud568\uc218\ub97c \uc815\uc758\ud569\ub2c8\ub2e4. `sum_of_multiples(n):`\ub294 `sum_of_multiples`\ub77c\ub294 \uc774\ub984\uc758 \ud568\uc218\uc774\uace0, `n`\uc774\ub77c\ub294 \ub9e4\uac1c\ubcc0\uc218\ub97c \ubc1b\uc2b5\ub2c8\ub2e4. \ud568\uc218 \uc774\ub984\uc740 \ud568\uc218\uac00 \ud558\ub294 \uc77c\uc744 \uc124\uba85\ud560 \uc218 \uc788\ub3c4\ub85d \uc9c1\uad00\uc801\uc73c\ub85c \uc124\uc815\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n
2. \ubcc0\uc218 \ucd08\uae30\ud654<\/h3>\n\n\n\n
`total = 0`\uc740 \uc6b0\ub9ac\uac00 \uacc4\uc0b0\ud558\uace0\uc790 \ud558\ub294 \ud569\uacc4\ub97c \uc800\uc7a5\ud560 \ubcc0\uc218\ub97c \ucd08\uae30\ud654\ud558\ub294 \uacfc\uc815\uc785\ub2c8\ub2e4. \uc774 \ubcc0\uc218\ub294 \ub098\uc911\uc5d0 3\uacfc 5\uc758 \ubc30\uc218\ub97c \ub354\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n
3. \ubc18\ubcf5\ubb38<\/h3>\n\n\n\n
`for i in range(n):` \uad6c\ubb38\uc740 \ubc18\ubcf5\ubb38\uc744 \uc124\uc815\ud558\uc5ec 0\ubd80\ud130 `n-1`\uae4c\uc9c0\uc758 \uc22b\uc790\uc5d0 \ub300\ud574 \ubc18\ubcf5\uc744 \uc218\ud589\ud569\ub2c8\ub2e4. `range(n)`\uc740 \ub9ac\uc2a4\ud2b8\uc640 \ube44\uc2b7\ud55c \uac1d\uccb4\ub97c \uc0dd\uc131\ud558\ub294\ub370, \uc774 \uacbd\uc6b0\uc5d0\ub294 `[0, 1, …, n-1]`\uacfc \ub3d9\uc77c\ud55c \uc2dc\ud000\uc2a4\ub97c \ubc18\ud658\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n
4. \uc870\uac74\ubb38<\/h3>\n\n\n\n
`if i % 3 == 0 or i % 5 == 0:` \uad6c\ubb38\uc740 \uac01 \uc22b\uc790\uac00 3 \ub610\ub294 5\uc758 \ubc30\uc218\uc778\uc9c0 \ud655\uc778\ud569\ub2c8\ub2e4. `%` \uc5f0\uc0b0\uc790\ub294 \ub098\uba38\uc9c0\ub97c \ubc18\ud658\ud558\uba70, \uc22b\uc790\uac00 3\uc73c\ub85c \ub098\ub204\uc5b4\ub5a8\uc5b4\uc9c0\uba74(\ub098\uba38\uc9c0\uac00 0) 3\uc758 \ubc30\uc218\uc785\ub2c8\ub2e4. 5\uc758 \ubc30\uc218\ub3c4 \ub9c8\ucc2c\uac00\uc9c0\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc870\uac74\uc774 \ucc38\uc77c \uacbd\uc6b0 \ud574\ub2f9 \uc218 `i`\ub97c `total` \ubcc0\uc218\uc5d0 \ub354\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n
\ub9ac\uc2a4\ud2b8 \ucef4\ud504\ub9ac\ud5e8\uc158\uc744 \uc0ac\uc6a9\ud55c \ub610 \ub2e4\ub978 \ubc29\ubc95<\/h2>\n\n\n\n
\ud30c\uc774\uc36c\uc740 \ucf54\ub4dc\uc758 \uac00\ub3c5\uc131\uc744 \ub192\uc774\uace0 \uac04\uacb0\ud558\uac8c \uc791\uc131\ud560 \uc218 \uc788\ub3c4\ub85d \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uadf8\uc911 \ud558\ub098\uac00 \ub9ac\uc2a4\ud2b8 \ucef4\ud504\ub9ac\ud5e8\uc158\uc785\ub2c8\ub2e4. \ub9ac\uc2a4\ud2b8 \ucef4\ud504\ub9ac\ud5e8\uc158\uc744 \uc0ac\uc6a9\ud558\uba74 \uc704\uc758 \ubb38\uc81c\ub97c \ud55c \uc904\uc758 \ucf54\ub4dc\ub85c \ud574\uacb0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n
\ndef sum_of_multiples_using_comprehension(n):\n    return sum(i for i in range(n) if i % 3 == 0 or i % 5 == 0)\n<\/code><\/pre>\n\n\n\n
\uc774 \ubc29\ubc95\uc740 \ubc18\ubcf5\ubb38\uacfc \uc870\uac74\ubb38\uc744 \ud55c \uc904\ub85c \uc791\uc131\ud558\uc600\uc73c\uba70, `sum()` \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub9ac\uc2a4\ud2b8\uc758 \ud569\uc744 \uad6c\ud558\ub294 \uac83\uc774 \ud2b9\uc9d5\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud615\ud0dc\uc758 \ucf54\ub4dc\ub294 \uc9c1\uad00\uc801\uc774\uba70, \uc9e7\uc740 \ucf54\ub4dc\ub97c \uc720\uc9c0\ud558\uace0\uc790 \ud560 \ub54c \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n
\ud6a8\uc728\uc131 \uace0\ub824<\/h2>\n\n\n\n
\uc704\uc5d0\uc11c \uc18c\uac1c\ud55c \ubc29\ubc95\uc740 \uc9c1\uad00\uc801\uc774\uace0 \uac04\ub2e8\ud558\uc9c0\ub9cc, \uc18c\uc218\uc5d0 \ub300\ud574 \ud6a8\uc728\uc801\uc778 \ubc29\ubc95\uc774 \uc544\ub2d0 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubc18\ubcf5 \ud69f\uc218\uac00 \ub9ce\uc544\uc9c8\uc218\ub85d Computational complexity\uac00 \ub192\uc544\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\ud589\ud788\ub3c4, \uc218\ud559\uc801 \uacf5\uc2dd\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc774 \ubb38\uc81c\ub97c \uc880 \ub354 \ud6a8\uc728\uc801\uc73c\ub85c \ud574\uacb0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n
\uc218\ud559\uc801 \uc811\uadfc \ubc29\ubc95<\/h3>\n\n\n\n
\uc218\ud559\uc801\uc73c\ub85c 3\uacfc 5\uc758 \ubc30\uc218\uc758 \ud569\uc744 \uad6c\ud560 \ub54c \ub4f1\ucc28\uc218\uc5f4\uc758 \ud569 \uacf5\uc2dd\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ubc29\ubc95\uc740 \ud2b9\ud788 N\uc774 \ub9e4\uc6b0 \ud070 \uacbd\uc6b0\uc5d0 \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n
3\uc758 \ubc30\uc218\ub4e4: 3, 6, 9, …, \uac00\uc7a5 \ud070 3\uc758 \ubc30\uc218<\/p>\n\n\n\n
5\uc758 \ubc30\uc218\ub4e4: 5, 10, 15, …, \uac00\uc7a5 \ud070 5\uc758 \ubc30\uc218<\/p>\n\n\n\n
\uacf5\ud1b5 \ubc30\uc218\ub294 \uc911\ubcf5\ub418\uc5b4 \uacc4\uc0b0\ub418\ubbc0\ub85c \uc81c\uc678\uc2dc\ucf1c\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n
\ndef arithmetic_sum(n, r):\n    count = (n - 1) \/\/ r\n    return r * count * (count + 1) \/\/ 2\n\ndef efficient_sum_of_multiples(n):\n    sum_3 = arithmetic_sum(n, 3)\n    sum_5 = arithmetic_sum(n, 5)\n    sum_15 = arithmetic_sum(n, 15)\n    return sum_3 + sum_5 - sum_15\n<\/code><\/pre>\n\n\n\n
`efficient_sum_of_multiples`\ub294 `arithmetic_sum` \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub4f1\ucc28\uc218\uc5f4\uc758 \ud569\uc744 \uacc4\uc0b0\ud569\ub2c8\ub2e4. \uc774 \ud568\uc218\ub294 `r x ((n-1)\/\/r) x (((n-1)\/\/r) + 1)\/2` \uacf5\uc2dd\uc5d0 \ub530\ub77c \uac01 \ubc30\uc218\uc758 \ud569\uc744 \uad6c\ud569\ub2c8\ub2e4. \ucd5c\uc885 \uacb0\uacfc\ub294 3\uc758 \ubc30\uc218\uc758 \ud569\uacfc 5\uc758 \ubc30\uc218\uc758 \ud569\uc744 \ub354\ud558\uace0, \uc911\ubcf5\uc73c\ub85c \ub354\ud574\uc9c4 15\uc758 \ubc30\uc218\uc758 \ud569\uc744 \ube7c\ub294 \ubc29\uc2dd\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n
\uacb0\ub860<\/h2>\n\n\n\n
\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ud30c\uc774\uc36c\uc744 \uc0ac\uc6a9\ud558\uc5ec 3\uacfc 5\uc758 \ubc30\uc218\uc758 \ud569\uc744 \uad6c\ud558\ub294 \ub2e4\uc591\ud55c \ubc29\ubc95\uc744 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \uae30\ubcf8\uc801\uc778 \ubc18\ubcf5\ubb38 \uc811\uadfc\ubd80\ud130 \ub9ac\uc2a4\ud2b8 \ucef4\ud504\ub9ac\ud5e8\uc158\uc744 \ud65c\uc6a9\ud55c \uac04\uacb0\ud55c \uad6c\ud604, \uadf8\ub9ac\uace0 \uc218\ud559\uc801\uc778 \uc811\uadfc\uc73c\ub85c \ud6a8\uc728\uc131\uc744 \uadf9\ub300\ud654\ud55c \ubc29\ubc95\uae4c\uc9c0 \ub2e4\ub8e8\uc5c8\uc2b5\ub2c8\ub2e4. \uc774 \ubb38\uc81c\ub97c \ud478\ub294 \ub2e4\uc591\ud55c \ubc29\ubc95\uc744 \uc81c\uc2dc\ud568\uc73c\ub85c\uc368 \ud504\ub85c\uadf8\ub798\ubc0d\uc758 \uae30\ubcf8 \uc6d0\ub9ac\uc640 \uc218\ud559\uc801 \uc0ac\uace0\ub97c \ucd09\uc9c4\ud560 \uc218 \uc788\ub294 \uae30\ud68c\ub97c \uc81c\uacf5\ud558\uc600\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n
\uc774\ucc98\ub7fc \ubb38\uc81c\ub97c \ub2e4\uc591\ud55c \ubc29\uc2dd\uc73c\ub85c \ud574\uacb0\ud574 \ubcf4\ub294 \uacbd\ud5d8\uc740 \ud504\ub85c\uadf8\ub798\ubc0d \uc2e4\ub825\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4. \ub610\ud55c, \uc54c\uace0\ub9ac\uc998\uacfc \ub370\uc774\ud130 \uad6c\uc870\uc5d0 \ub300\ud55c \uc774\ud574\ub97c \uc2ec\ud654\uc2dc\ud0ac \uc218 \uc788\ub294 \uae30\ud68c\uac00 \ub429\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"
\ud504\ub85c\uadf8\ub798\ubc0d\uc744 \ubc30\uc6b0\uae30 \uc2dc\uc791\ud558\uba74 \uc22b\uc790\uc640 \uad00\ub828\ub41c \uac04\ub2e8\ud55c \ubb38\uc81c\ub4e4\ub85c \uc2dc\uc791\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubb38\uc81c\ub4e4\uc740 \uc54c\uace0\ub9ac\uc998\uacfc \ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\uc758 \uae30\ucd08\ub97c \uc774\ud574\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub418\uba70, \ub17c\ub9ac\uc801 \uc0ac\uace0\ub97c \ubc1c\uc804\uc2dc\ud0a4\ub294 \uc88b\uc740 \uc5f0\uc2b5\uc774 \ub429\ub2c8\ub2e4. \uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ud30c\uc774\uc36c\uc744 \uc0ac\uc6a9\ud558\uc5ec 3\uacfc 5\uc758 \ubc30\uc218\ub97c \ubaa8\ub450 \ub354\ud558\ub294 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\ub294 \ubc29\ubc95\uc744 \ud0d0\uad6c\ud574\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \ubb38\uc81c \uc815\uc758 \uc6b0\ub9ac\uac00 \ud574\uacb0\ud558\uace0\uc790 \ud558\ub294 \ubb38\uc81c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4: \uc8fc\uc5b4\uc9c4 \uc591\uc758 \uc815\uc218 N\ubcf4\ub2e4 \uc791\uc740 \uc790\uc5f0\uc218 \uc911\uc5d0\uc11c 3 \ub610\ub294 … \ub354 \ubcf4\uae30 “\ud30c\uc774\uc36c \uac15\uc88c: 3\uacfc 5\uc758 \ubc30\uc218\ub97c \ubaa8\ub450 \ub354\ud558\uae30”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[11],"tags":[14,15],"class_list":["post-24207","post","type-post","status-publish","format-standard","hentry","category-11","tag-14","tag-15"],"yoast_head":"\n\ud30c\uc774\uc36c \uac15\uc88c: 3\uacfc 5\uc758 \ubc30\uc218\ub97c \ubaa8\ub450 \ub354\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\" 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