\uc548\ub155\ud558\uc138\uc694! \uc624\ub298\uc740 \uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8\ub85c \ucf54\ub529\ud14c\uc2a4\ud2b8 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\ub3c4\ub85d \ud558\uaca0\uc2b5\ub2c8\ub2e4. \uc774\ubc88 \uac15\uc88c\uc758 \uc8fc\uc81c\ub294 ‘K\ubc88\uc9f8 \uc218 \uad6c\ud558\uae30’\uc785\ub2c8\ub2e4. \uc774 \ubb38\uc81c\ub97c \ud1b5\ud574 \uc6b0\ub9ac\ub294 \ubc30\uc5f4\uc758 \uc815\ub82c \ubc0f \ud2b9\uc815 \uc778\ub371\uc2a4\uc758 \uac12\uc744 \ucc3e\ub294 \ubc29\ubc95\uc744 \ubc30\uc6b8 \uac83\uc785\ub2c8\ub2e4. \ubb38\uc81c\uc758 \ub0b4\uc6a9\uacfc \ud574\uacb0 \uacfc\uc815\uc744 \ub2e8\uacc4 \ubcc4\ub85c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n
\uc8fc\uc5b4\uc9c4 \ubc30\uc5f4\uc5d0\uc11c \ud2b9\uc815 \uc870\uac74\uc744 \ub9cc\uc871\ud558\ub294 K\ubc88\uc9f8 \uc218\ub97c \ucc3e\uc544\uc57c \ud569\ub2c8\ub2e4. \uad6c\uccb4\uc801\uc778 \ubb38\uc81c \uc124\uba85\uc740 \uc544\ub798\uc640 \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n
\n\ubb38\uc81c: K\ubc88\uc9f8 \uc218 \uad6c\ud558\uae30\n\n\ub2f9\uc2e0\uc740 \ubc30\uc5f4\uacfc \uc815\uc218 K\uac00 \uc8fc\uc5b4\uc84c\uc744 \ub54c, \ubc30\uc5f4\uc744 \uc624\ub984\ucc28\uc21c\uc73c\ub85c \uc815\ub82c\ud55c \ud6c4 K\ubc88\uc9f8\ub85c \uc791\uc740 \uc218\ub97c \ubc18\ud658\ud574\uc57c \ud569\ub2c8\ub2e4.\n\n\uc785\ub825:\n- \uccab \ubc88\uc9f8 \uc904: \uc815\uc218 N (\ubc30\uc5f4\uc758 \uae38\uc774), \uc815\uc218 K (\ucc3e\uace0\uc790 \ud558\ub294 \uc218\uc758 \uc704\uce58)\n- \ub450 \ubc88\uc9f8 \uc904: N\uac1c\uc758 \uc815\uc218\ub85c \uc774\ub8e8\uc5b4\uc9c4 \ubc30\uc5f4\n\n\ucd9c\ub825:\n- K\ubc88\uc9f8 \uc791\uc740 \uc218\n<\/pre>\n\uc608\uc2dc<\/h3>\n
\n
- \uc785\ub825:
5 2<\/code><\/li>\n- \ubc30\uc5f4:
[3, 1, 2, 5, 4]<\/code><\/li>\n- \ucd9c\ub825:
2<\/code><\/li>\n<\/ul>\n\uc704\uc758 \uc785\ub825\uac12\uc5d0\uc11c, \ubc30\uc5f4\uc744 \uc624\ub984\ucc28\uc21c\uc73c\ub85c \uc815\ub82c\ud558\uba74
[1, 2, 3, 4, 5]<\/code>\uac00 \ub418\uace0, 2\ubc88\uc9f8 \uc218\ub2942<\/code>\uc785\ub2c8\ub2e4.<\/p>\n\ubb38\uc81c \ud574\uacb0 \uacfc\uc815<\/h2>\n
\ubb38\uc81c\ub97c \ud478\ub294 \ub370 \ud544\uc694\ud55c \ub2e8\uacc4\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n
\n
- \uc785\ub825\uac12\uc744 \uc77d\uace0 \ubc30\uc5f4\uacfc K\ub97c \uc124\uc815\ud569\ub2c8\ub2e4.<\/li>\n
- \ubc30\uc5f4\uc744 \uc624\ub984\ucc28\uc21c\uc73c\ub85c \uc815\ub82c\ud569\ub2c8\ub2e4.<\/li>\n
- K\ubc88\uc9f8 \uc778\ub371\uc2a4\uc758 \uac12\uc744 \ucd9c\ub825\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n
1\ub2e8\uacc4: \uc785\ub825\uac12 \uc77d\uae30<\/h3>\n
JavaScript\uc758 \uacbd\uc6b0,
prompt<\/code> \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc785\ub825\uac12\uc744 \ubc1b\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc, \ucf54\ub529\ud14c\uc2a4\ud2b8 \ud50c\ub7ab\ud3fc\uc5d0\uc11c\ub294 \uc8fc\ub85c \ud45c\uc900 \uc785\ub825\uc744 \ud1b5\ud574 \uac12\uc744 \uc77d\uc5b4\uc635\ub2c8\ub2e4. \uc5ec\uae30\uc11c\ub294 \ubc30\uc5f4\uc744 \uc9c1\uc811 \uc120\uc5b8\ud558\uc5ec \ud14c\uc2a4\ud2b8\ud558\ub3c4\ub85d \ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n\nconst arr = [3, 1, 2, 5, 4];\nconst K = 2; \/\/ K\ubc88\uc9f8 \uc218\n<\/code><\/pre>\n2\ub2e8\uacc4: \ubc30\uc5f4 \uc815\ub82c<\/h3>\n
\uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8\uc5d0\uc11c\ub294 \ubc30\uc5f4\uc744 \uc815\ub82c\ud558\uae30 \uc704\ud574
sort<\/code> \uba54\uc18c\ub4dc\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uba54\uc18c\ub4dc\ub294 \uae30\ubcf8\uc801\uc73c\ub85c \ubb38\uc790\uc5f4 \uc815\ub82c\uc744 \ud558\uae30 \ub54c\ubb38\uc5d0, \uc22b\uc790 \uc815\ub82c\uc744 \uc704\ud574 \ucf5c\ubc31 \ud568\uc218\ub97c \uc81c\uacf5\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\narr.sort((a, b) => a - b);\n<\/code><\/pre>\n\uc704 \ucf54\ub4dc\ub294 \ubc30\uc5f4\uc744 \uc624\ub984\ucc28\uc21c\uc73c\ub85c \uc815\ub82c\ud569\ub2c8\ub2e4. \uc989, \uc791\uc740 \uc218\ubd80\ud130 \ud070 \uc218\ub85c \ub098\uc5f4\ud569\ub2c8\ub2e4.<\/p>\n
3\ub2e8\uacc4: K\ubc88\uc9f8 \uc218 \ubc18\ud658<\/h3>\n
\ubc30\uc5f4 \uc778\ub371\uc2a4\ub294 0\ubd80\ud130 \uc2dc\uc791\ud558\ubbc0\ub85c, K\ubc88\uc9f8 \uc218\ub97c \uac00\uc838\uc624\uae30 \uc704\ud574\uc11c\ub294
K-1<\/code>\uc744 \uc778\ub371\uc2a4\ub85c \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \ub2e4\uc74c\uacfc \uac19\uc774 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\nconst kthNumber = arr[K - 1];\nconsole.log(kthNumber); \/\/ \ucd9c\ub825\n<\/code><\/pre>\n\uc804\uccb4 \ucf54\ub4dc<\/h2>\n
\uc774\uc81c \ubaa8\ub4e0 \ub2e8\uacc4\ub97c \uc885\ud569\ud558\uc5ec \uc804\uccb4 \ucf54\ub4dc\ub97c \uc791\uc131\ud574\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n
\nfunction findKthNumber(arr, K) {\n \/\/ \ubc30\uc5f4\uc744 \uc624\ub984\ucc28\uc21c\uc73c\ub85c \uc815\ub82c\n arr.sort((a, b) => a - b);\n \n \/\/ K\ubc88\uc9f8 \uc218 \ubc18\ud658 (K\ub294 1-based \uc778\ub371\uc2a4\uc774\ubbc0\ub85c K-1 \uc0ac\uc6a9)\n return arr[K - 1];\n}\n\n\/\/ \ud14c\uc2a4\ud2b8\nconst arr = [3, 1, 2, 5, 4]; \/\/ \uc608\uc2dc \ubc30\uc5f4\nconst K = 2; \/\/ K\ubc88\uc9f8 \uc218\nconst result = findKthNumber(arr, K);\nconsole.log(result); \/\/ \uacb0\uacfc \ucd9c\ub825: 2\n<\/code><\/pre>\n\uacb0\ub860<\/h2>\n
\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 ‘K\ubc88\uc9f8 \uc218 \uad6c\ud558\uae30’ \ubb38\uc81c\ub97c \ud574\uacb0\ud574\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ubc30\uc5f4\uc744 \uc815\ub82c\ud558\uace0 \ud2b9\uc815 \uc704\uce58\uc758 \uac12\uc744 \ucc3e\ub294 \uacfc\uc815\uc5d0\uc11c \uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8\uc758 \ubc30\uc5f4 \uba54\uc18c\ub4dc\uc778
sort<\/code>\ub97c \ud65c\uc6a9\ud558\ub294 \ubc29\ubc95\uc744 \ubc30\uc6e0\uc2b5\ub2c8\ub2e4. \uc54c\uace0\ub9ac\uc998 \ubb38\uc81c\ub97c \ud480 \ub54c\uc5d0\ub294 \ubb38\uc81c\ub97c \uc798 \uc774\ud574\ud558\uace0, \uc791\uc740 \ub2e8\uc704\ub85c \ub098\ub204\uc5b4 \ud574\uacb0\ud558\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc5d0\ub294 \ub354 \ub2e4\uc591\ud55c \ubb38\uc81c\ub97c \uac00\uc9c0\uace0 \ucc3e\uc544\uc624\uaca0\uc2b5\ub2c8\ub2e4. \uac10\uc0ac\ud569\ub2c8\ub2e4!<\/p>\n<\/body><\/p>\n","protected":false},"excerpt":{"rendered":"