{"id":27905,"date":"2024-10-27T15:20:16","date_gmt":"2024-10-27T15:20:16","guid":{"rendered":"http:\/\/atmokpo.com\/w\/?p=27905"},"modified":"2024-11-26T07:13:53","modified_gmt":"2024-11-26T07:13:53","slug":"%ec%9e%90%eb%b0%94%ec%8a%a4%ed%81%ac%eb%a6%bd%ed%8a%b8-%ec%bd%94%eb%94%a9%ed%85%8c%ec%8a%a4%ed%8a%b8-%ea%b0%95%ec%a2%8c-%ec%8a%ac%eb%9d%bc%ec%9d%b4%eb%94%a9-%ec%9c%88%eb%8f%84%ec%9a%b0","status":"publish","type":"post","link":"https:\/\/atmokpo.com\/w\/27905\/","title":{"rendered":"\uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8 \ucf54\ub529\ud14c\uc2a4\ud2b8 \uac15\uc88c, \uc2ac\ub77c\uc774\ub529 \uc708\ub3c4\uc6b0"},"content":{"rendered":"

<\/p>\n

1. \uc2ac\ub77c\uc774\ub529 \uc708\ub3c4\uc6b0\ub780?<\/h2>\n

\uc2ac\ub77c\uc774\ub529 \uc708\ub3c4\uc6b0(Sliding Window) \uae30\uc220\uc740 \uc8fc\uc5b4\uc9c4 \ubc30\uc5f4\uc774\ub098 \ub9ac\uc2a4\ud2b8\uc5d0\uc11c \ud2b9\uc815 \uc870\uac74\uc744 \ub9cc\uc871\ud558\ub294 \uc11c\ube0c \ubc30\uc5f4(subarray) \ub610\ub294 \uc11c\ube0c \ubb38\uc790\uc5f4(substring)\uc744 \ucc3e\uae30 \uc704\ud574 \uc0ac\uc6a9\ub418\ub294 \uc54c\uace0\ub9ac\uc998 \uae30\ubc95\uc785\ub2c8\ub2e4. \uc8fc\ub85c \uc5f0\uc18d\ub41c \uc6d0\uc18c\ub4e4\uc774 \ud544\uc694\ud55c \ubb38\uc81c\uc5d0 \uc801\ud569\ud558\uba70, \ubb38\uc81c\uc5d0 \ub530\ub77c \uace0\uc815\ub41c \ud06c\uae30 \ub610\ub294 \uac00\ubcc0 \ud06c\uae30 \ucc3d(window)\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n

1.1 \uc2ac\ub77c\uc774\ub529 \uc708\ub3c4\uc6b0\uc758 \uc7a5\uc810<\/h3>\n

\uc2ac\ub77c\uc774\ub529 \uc708\ub3c4\uc6b0\uc758 \uac00\uc7a5 \ud070 \uc7a5\uc810\uc740 \ube0c\ub8e8\ud2b8 \ud3ec\uc2a4(brute force) \ubc29\ubc95\uc5d0 \ube44\ud574 \uc2dc\uac04 \ubcf5\uc7a1\ub3c4\ub97c \ud06c\uac8c \uc904\uc77c \uc218 \uc788\ub2e4\ub294 \uc810\uc785\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c O(n^2)\uc5d0\uc11c O(n)\uc73c\ub85c \uc904\uc77c \uc218 \uc788\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. \uc2ac\ub77c\uc774\ub529 \uc708\ub3c4\uc6b0\ub294 \ub450 \uac1c\uc758 \ud3ec\uc778\ud130\ub97c \uc0ac\uc6a9\ud558\uc5ec \ubc30\uc5f4\uc744 \uc21c\ud68c\ud558\uba70 \ud6a8\uc728\uc801\uc778 \uc811\uadfc\uc744 \uac00\ub2a5\ud558\uac8c \ud569\ub2c8\ub2e4.<\/p>\n

2. \uc54c\uace0\ub9ac\uc998 \ubb38\uc81c \uc608\uc2dc<\/h2>\n

\ubb38\uc81c: \ucd5c\ub300 \uae38\uc774\uc758 \ubc18\ubcf5 \ubb38\uc790 \ub300\uccb4<\/h3>\n

\uc8fc\uc5b4\uc9c4 \ubb38\uc790\uc5f4\uc774 \uc788\uc744 \ub54c, ‘k’\uac1c\uc758 \ub2e4\ub978 \ubb38\uc790\ub85c \ubcc0\uacbd\ud558\uc5ec \ub9cc\ub4e4 \uc218 \uc788\ub294 \uac00\uc7a5 \uae34 \ubd80\ubd84 \ubb38\uc790\uc5f4\uc758 \uae38\uc774\ub97c \ubc18\ud658\ud558\ub294 \ud568\uc218\ub97c \uc791\uc131\ud558\uc138\uc694.<\/p>\n

\n    \uc608\uc2dc:\n    \uc785\ub825: s = \"AABABBA\", k = 1\n    \ucd9c\ub825: 4\n    \uc124\uba85: \ubcc0\uacbd\ud560 \uc218 \uc788\ub294 \ubb38\uc790\ub294 'A' \ub610\ub294 'B'\uc774\ub2e4. 'B' \ub450 \uac1c\ub97c 'A'\ub85c \ubc14\uafd4 'AAAA'\ub97c \ub9cc\ub4e4 \uc218 \uc788\ub2e4.\n    <\/code><\/pre>\n
\ubb38\uc81c \uc811\uadfc \ubc29\uc2dd<\/h3>\n
\uc774 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud574 \uc2ac\ub77c\uc774\ub529 \uc708\ub3c4\uc6b0\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc5ec\uae30\uc11c\ub294 \ud604\uc7ac \uc708\ub3c4\uc6b0\uc5d0 \ud3ec\ud568\ub41c \ubb38\uc790\uc758 \uac1c\uc218\ub97c \uc138\uace0, k\uac1c\uc758 \ubb38\uc790\ub97c \ub300\uccb4\ud560 \uc218 \uc788\ub294\uc9c0 \ud655\uc778\ud569\ub2c8\ub2e4.<\/p>\n
2.1 \uc54c\uace0\ub9ac\uc998 \ub2e8\uacc4<\/h4>\n
    \n
  1. \uc67c\ucabd \ud3ec\uc778\ud130(left)\uc640 \uc624\ub978\ucabd \ud3ec\uc778\ud130(right)\ub97c \ucd08\uae30\ud654\ud55c\ub2e4.<\/li>\n
  2. \ubd80\ubd84 \ubb38\uc790\uc5f4\uc758 \ubb38\uc790\ub97c \uc138\uae30 \uc704\ud574 HashMap\uc744 \uc0ac\uc6a9\ud55c\ub2e4.<\/li>\n
  3. \ud604\uc7ac \uc708\ub3c4\uc6b0\uc758 \uc720\ud6a8\uc131\uc744 \ud655\uc778\ud55c\ub2e4.<\/li>\n
  4. \uc720\ud6a8\ud558\uc9c0 \uc54a\uc73c\uba74 \uc67c\ucabd \ud3ec\uc778\ud130\ub97c \uc774\ub3d9\uc2dc\ud0a8\ub2e4.<\/li>\n
  5. \ud604\uc7ac \uc708\ub3c4\uc6b0 \ud06c\uae30\ub97c \uae30\ub85d\ud558\uace0, \uc624\ub978\ucabd \ud3ec\uc778\ud130\ub97c \uc774\ub3d9\uc2dc\ud0a8\ub2e4.<\/li>\n
  6. \uc774 \uacfc\uc815\uc744 \ubc18\ubcf5\ud558\uc5ec \ucd5c\ub300 \uae38\uc774\ub97c \uad6c\ud55c\ub2e4.<\/li>\n<\/ol>\n
    3. \ucf54\ub4dc \uad6c\ud604<\/h2>\n
    \uc544\ub798\ub294 \uc704\uc5d0\uc11c \uc124\uba85\ud55c \uc54c\uace0\ub9ac\uc998\uc744 \ubc14\ud0d5\uc73c\ub85c \uc791\uc131\ud55c \uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8 \ucf54\ub4dc\uc785\ub2c8\ub2e4.<\/p>\n
    \n    function characterReplacement(s, k) {\n        const countMap = {};\n        let left = 0;\n        let maxLength = 0;\n        let maxCount = 0;\n\n        for (let right = 0; right < s.length; right++) {\n            countMap[s[right]] = (countMap[s[right]] || 0) + 1;\n            maxCount = Math.max(maxCount, countMap[s[right]]);\n\n            while (right - left + 1 - maxCount > k) {\n                countMap[s[left]]--;\n                left++;\n            }\n\n            maxLength = Math.max(maxLength, right - left + 1);\n        }\n\n        return maxLength;\n    }\n\n    \/\/ \uc0ac\uc6a9 \uc608\uc2dc\n    console.log(characterReplacement(\"AABABBA\", 1)); \/\/ 4\n    <\/code><\/pre>\n
    4. \ucf54\ub4dc \uc124\uba85<\/h2>\n
    \uc704\uc758 \ucf54\ub4dc\uc5d0\uc11c \uc6b0\ub9ac\ub294 ‘s’ \ubb38\uc790\uc5f4\uc744 \uc8fc\uc5b4\uc9c4 ‘k’\uc5d0 \ub300\ud574 \ubc18\ubcf5\uc801\uc73c\ub85c \ucc98\ub9ac\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uac01 \ubb38\uc790\uc758 \ubc1c\uc0dd \ube48\ub3c4\ub97c \uc138\uae30 \uc704\ud574 countMap\uc744 \uc0ac\uc6a9\ud558\uace0 \uc788\uc73c\uba70, \ud604\uc7ac \uc708\ub3c4\uc6b0\uc5d0\uc11c \uac00\uc7a5 \ub9ce\uc774 \ub098\ud0c0\ub098\ub294 \ubb38\uc790\uc758 \uac1c\uc218\ub97c \ucd94\uc801\ud569\ub2c8\ub2e4.<\/p>\n
    4.1 \uc8fc\uc694 \ubcc0\uc218 \uc124\uba85<\/h3>\n