{"id":2860,"date":"2019-06-06T18:44:45","date_gmt":"2019-06-06T09:44:45","guid":{"rendered":"https:\/\/now0930.pe.kr\/wordpress\/?p=2860"},"modified":"2019-06-06T19:41:58","modified_gmt":"2019-06-06T10:41:58","slug":"%ed%94%84%eb%a1%9c%ea%b7%b8%eb%9e%98%eb%a8%b8%ec%8a%a4-%eb%94%94%ec%8a%a4%ed%81%ac%ec%bb%a8%ed%8a%b8%eb%a1%a4%eb%9f%ac","status":"publish","type":"post","link":"https:\/\/now0930.pe.kr\/wordpress\/%ed%94%84%eb%a1%9c%ea%b7%b8%eb%9e%98%eb%a8%b8%ec%8a%a4-%eb%94%94%ec%8a%a4%ed%81%ac%ec%bb%a8%ed%8a%b8%eb%a1%a4%eb%9f%ac\/","title":{"rendered":"\ud504\ub85c\uadf8\ub798\uba38\uc2a4 \ub514\uc2a4\ud06c\ucee8\ud2b8\ub864\ub7ec"},"content":{"rendered":"\n<p>\uc6f9\uc5d0 \uc62c\ub9b0 \uacb0\uacfc\ub294 \ud2c0\ub9bc. \uadf8\ub7ec\ub098 \ub0b4\uac00 \ub9de\ub2e4 \uc0dd\uac01\ud55c\ub2e4.<\/p>\n\n\n\n<p>\ubb38\uc81c\ub294 <a href=\"https:\/\/programmers.co.kr\/learn\/courses\/30\/lessons\/42627\">\uc544\ub798<\/a>\uc640 \uac19\ub2e4.<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>\uc791\uc5c5\uc774 [\uc2dc\uc791 \uc2dc\uac01, \uc791\uc5c5 \uae38\uc774] 2\ucc28\uc6d0 \ubc30\uc5f4\ub85c \ub4e4\uc5b4\uc628\ub2e4.<\/li><li>\uc791\uc5c5\uc774 \uc5f0\uc18d\ub420 \uacbd\uc6b0, \uc774 \uc548\uc5d0\uc11c \uc791\uc5c5 \uae38\uc774\ub97c \uc9e7\uc740 \uc21c\uc73c\ub85c \uc815\ub82c\ud558\uc5ec \uc2e4\ud589\ud55c\ub2e4.<\/li><li>\uac01 \uc791\uc5c5\uc5d0 \ub300\ud55c \uae30\ub2e4\ub9b0 \uc2dc\uac04 + \uc791\uc5c5 \uc2dc\uac04\uc744 \uacc4\uc0b0\ud55c\ub2e4.<\/li><li>\uc791\uc5c5 \uac1c\uc218\ub97c \ucd1d \uc2dc\uac04\uc73c\ub85c \ub098\ub220\uc900\ub2e4.<\/li><\/ol>\n\n\n\n<p>\uc5ec\uae30\uc5d0\uc11c \ubc30\uc5f4\uc744 \ud55c\ubc88\uc5d0 \uc77d\ub294\ub2e4. \uccab\ubc88\uc9f8 \uc791\uc5c5 \uc21c\uc11c\ub97c \uc77d\uc744 \ub54c, \ubaa8\ub4e0 \uc791\uc5c5 \uc21c\uc11c\ub97c \uacb0\uc815\ud560 \uc218 \uc788\ub2e4. \uc608\uc81c [[0, 3], [1, 9], [2, 6]] \uc21c\uc11c\uc5d0 \ub9c8\uc9c0\ub9c9 2\uac1c\ub97c \ub354 \ub4e4\uc5b4\uc628\ub2e4\uace0 \ud558\uc790. [[0, 3], [1, 9], [2, 6], [24,4], [20,7]].<\/p>\n\n\n\n<p>\uc5d1\uc140 Calc\ub85c \uadf8\ub9bc\uc744 \uadf8\ub9ac\uba74 \uc544\ub798\uc640 \uac19\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"217\" src=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2019\/06\/temp1-1024x217.png\" alt=\"\" class=\"wp-image-2861\" srcset=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2019\/06\/temp1-1024x217.png 1024w, https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2019\/06\/temp1-300x64.png 300w, https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2019\/06\/temp1-768x163.png 768w, https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2019\/06\/temp1.png 1070w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\uc791\uc5c5A\ubd80\ud130 \uc791\uc5c5E\uae4c\uc9c0 \uc77d\uc744 \ub54c, \ud544\uc694\ud55c \uc791\uc5c5 \uc2dc\uac04(checkBar)\uc744 \uc815\ud574\uc57c \ud55c\ub2e4. \uc774 \uc791\uc5c5 \uc2dc\uac04\uc548\uc5d0 \ub4e4\uc5b4\uc624\uba74 \uc791\uc5c5 \uc2dc\uac04\uc744 \uc801\uc740 \uc21c\uc11c\ub300\ub85c \uc815\ub82c\ud55c\ub2e4. \uc791\uc5c5 \uc2dc\uac04\uc744 \ub118\uc5b4\uac00\uba74 \ub2e4\uc74c \ud134\uc5d0 \uc815\ub82c\ud574\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<p>\uc785\ub825\uc744 \uc77d\uc744 \ub54c, 24\ucd08\uc5d0 \ub4e4\uc5b4\uc628 \uc791\uc5c5\uacfc 20\ucd08\uc5d0 \ub4e4\uc5b4\uc628 \uc791\uc5c5\uc744 \uacb0\uc815\ud560 \uc218 \uc788\ub2e4. \ub2e4\uc74c\uacfc \uac19\uc774 \uc870\uc815\ud560 \uc218 \uc788\ub2e4. 24\ucd08\uc5d0 \ub4e4\uc5b4\uc628 \uc791\uc5c5\uc744 20\ucd08\uc5d0 \uba3c\uc800 \uc2e4\ud589\ud558\uba74 \uc791\uc5c5D, \uc791\uc5c5E\ub97c \ud558\ub294\ub370 \ucd1d 11\ucd08 \uac78\ub9b0\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"254\" src=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2019\/06\/temp2-1024x254.png\" alt=\"\" class=\"wp-image-2862\" srcset=\"https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2019\/06\/temp2-1024x254.png 1024w, https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2019\/06\/temp2-300x74.png 300w, https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2019\/06\/temp2-768x190.png 768w, https:\/\/now0930.pe.kr\/wordpress\/wp-content\/uploads\/2019\/06\/temp2.png 1070w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\ub9cc\uc57d \ub4e4\uc5b4\uc628 \uc21c\uc11c\ub300\ub85c \ud558\uba74 \uc791\uc5c5D, \uc791\uc5c5E\ub97c 14\ucd08\uc5d0 \ud55c\ub2e4. jobs\uc744 \uc77d\uc744 \ub54c \ub4a4\ucabd \ubc30\uc5f4\uc5d0 \uc2dc\uac04\uc774 \ube60\ub978 \uc791\uc5c5\uc744 \uc5b4\ub5bb\uac8c \ucc98\ub9ac\ud560\uae4c? \uc774\ub7f0 \uacbd\uc6b0\ub97c \ubcf4\uba74 jobs\uc744 \uc21c\uc11c\ub300\ub85c \uc77d\uc73c\uba74 \uc548\ub41c\ub2e4. \ubaa8\ub450 \uc77d\uc5b4\uc11c \ube60\ub978 \uc21c\uc11c\ub300\ub85c \uc815\ub9ac\ud574\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<p>\ud558\ub4dc \ub514\uc2a4\ud06c\uac00 \ub180\uace0 \uc788\uc744 \ub54c \uba3c\uc800 \ub4e4\uc5b4\uc628 \uc21c\uc11c\ub300\ub85c \ud55c\ub2e4\ub294 \uc81c\ud55c\uc774 \uc788\ub2e4. jobs[][]\uc774 \ub300\uae30\uc5f4\uc774\ub2e4. \ud604\uc7ac \uc2dc\uac01\uc774 0\ucd08\uc774\uace0, jobs[0] = [1,2], jobs[1] = [2,5], jobs[2] = [0,4]\uc774\ub77c \ud558\uc790. \uc704 \uc81c\ud55c\uc5d0 \ub530\ub974\uba74 jobs[2]\ub294 \uc870\uc815\ud560 \uc218 \uc5c6\uc5b4 \uc2e4\ud57c\ud560 \uc218 \uc5c6\ub2e4. \ubb38\uc81c \uc870\uac74\uc5d0 jobs[i]\ub294 \ud56d\uc0c1 \uc2dc\uc791 \uc2dc\uac01\uc774 \ub298\uc5b4\ub09c\ub2e4\ub294 \uc870\uac74\uc744 \ucd94\uac00\ud574\uc57c \ud55c\ub2e4. \uc774 \uc870\uac74\uc774 \uc788\uc5c8\uc73c\uba74 \ub0b4\uac00 \uc774\ub7f0 \uac1c\uace0\uc0dd \uc548\ud588\uc744 \uc218 \uc788\uc5c8\ub2e4. \uc6f9\uc740 \ud2c0\ub838\ub2e4\uc9c0\ub9cc \ub09c \ub9de\uc558\ub2e4\uace0 \uc815\ub2f9\ud654\uc2dc\ud0a4\uace0 \ub05d\ub0b8\ub2e4.<\/p>\n\n\n\n<p>\ubb38\uc81c\ub294 \uc774 \ucf54\ub4dc\ub97c \uc6f9\uc5d0 \uc62c\ub9ac\uba74 runtime error\ub85c \uac80\uc99d\ud560 \uc218 \uc5c6\ub2e4. \uc6b0\uc120\uc21c\uc704 \ud050 \ubb38\uc81c\uc5d0 \ub108\ubb34 \ub9ce\uc740 \uc2dc\uac04\uc744 \ubcf4\ub0c8\ub2e4.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\nimport java.util.Collections;\nimport java.util.PriorityQueue;\n\npublic class Main {\n\tpublic static void main(String[] args) {\n\n\t\t\/\/\t\tPriorityQueue&lt;Student> ptrTestQ = new PriorityQueue&lt;>();\n\n\t\t\/\/\t\twhile (!sol.getQ().isEmpty())\n\t\t\/\/\t\t\tSystem.out.println(ptrTestQ.remove());\n\n\t\t\/\/ \uc2dc\uc791..\n\t\tint[][] jobs = new int[5][2];\n\t\tjobs[0][0] = 0;\n\t\tjobs[0][1] = 3;\n\t\tjobs[1][0] = 1;\n\t\tjobs[1][1] = 9;\n\t\tjobs[2][0] = 2;\n\t\tjobs[2][1] = 6;\n\t\tjobs[3][0] = 24;\n\t\tjobs[3][1] = 4;\n\t\tjobs[4][0] = 20;\n\t\tjobs[4][1] = 7;\n\n\t\t\/*\n\t\t * System.out.println(\"Jobs type\uc740\"+jobs.getClass().getTypeName());\n\t\t * \n\t\t * \n\t\t *\/\n\t\tSolution sol = new Solution();\n\t\tint answer = sol.solution(jobs);\n\n\t\tSystem.out.println(\"\uc5ec\uae30\");\n\t\tSystem.out.println(\"\ub2f5\uc740  \" + answer);\n\n\t\t\/*\n\t\t * while (!sol.getQue().isEmpty()) System.out.println(\"sol.getQue\ub0b4\uc6a9\uc740 \" +\n\t\t * sol.getQue().poll()); while (!sol.getQueOffset().isEmpty())\n\t\t * System.out.println(\"sol.getQueOffset\ub0b4\uc6a9\uc740 \" + sol.getQueOffset().poll());\n\t\t *\/\n\n\t}\/\/ void main\n\n} \/\/ Main\n\nclass Solution {\n\n\tpublic int solution(int[][] jobs) {\n\n\t\t\/\/ \uc694\uccad \ub300\uae30\uc2dc\uac04\uc774 \ubcf4\uc815\ub41c \ud050.\n\t\tPriorityQueue&lt;Job> priqueJobsReversed = new PriorityQueue&lt;>();\n\t\tPriorityQueue&lt;Job> priqueCheckReversed = new PriorityQueue&lt;>();\n\n\t\t\/\/ jobs\uc744 class\ub85c \uc785\ub825\n\t\tfor (int i = 0; i &lt; jobs.length; i++) {\n\t\t\tJob tmpJob = new Job(jobs[i][0], jobs[i][1]);\n\t\t\t\/\/ timeStamp \uae30\uc900 \uc815\ub82c\n\t\t\t\/\/ setFlag\uc640 \uc138\ud2b8\ub85c \uac19\uc774 \uc6c0\uc9c1\uc5ec\uc57c \ub428.\n\t\t\tpriqueJobsReversed.add(tmpJob);\n\t\t}\n\t\t\/*\n\t\t * while (!priqueJobsReversed.isEmpty()) { System.out.println(\"timeStamp:\" +\n\t\t * priqueJobsReversed.peek().timeStamp + \", Duration: \" +\n\t\t * priqueJobsReversed.peek().duration); priqueJobsReversed.poll(); }\n\t\t *\/\n\n\t\tPriorityQueue&lt;Job> priqueJobs = new PriorityQueue&lt;>(priqueJobsReversed.size(), Collections.reverseOrder());\n\t\tpriqueJobs.addAll(priqueJobsReversed);\n\n\t\t\/\/ \ubcf5\uc0ac..\n\t\tPriorityQueue&lt;Job> priqueJobsTmp = new PriorityQueue&lt;>(priqueJobs);\n\n\t\tboolean overlapped = false;\n\t\tint startTime = 0;\n\t\tint endTime = 0;\n\t\tint preDuration = 0;\n\t\tint preTimeStamp = 0;\n\t\tint PolledDuration = 0;\n\t\tint PolledTimeStamp = 0;\n\t\twhile (!priqueJobsTmp.isEmpty()) {\n\t\t\tif (!overlapped) {\n\t\t\t\tstartTime = priqueJobsTmp.peek().timeStamp;\n\t\t\t\tendTime = startTime + priqueJobsTmp.peek().duration;\n\n\t\t\t}\n\t\t\tpreDuration = priqueJobsTmp.peek().duration;\n\t\t\tpreTimeStamp = priqueJobsTmp.peek().timeStamp;\n\t\t\tpriqueJobsTmp.poll();\n\t\t\tif (!priqueJobsTmp.isEmpty()) {\n\t\t\t\tPolledDuration = priqueJobsTmp.peek().duration;\n\t\t\t\tPolledTimeStamp = priqueJobsTmp.peek().timeStamp;\n\t\t\t} \/\/if\n\t\t\telse {\n\t\t\t\tPolledTimeStamp = 0;\n\t\t\t\tJob checkBar = new Job(startTime, endTime);\n\t\t\t\t\/\/ \uc2dc\uac04\uc21c\uc73c\ub85c \uc815\ub82c\n\t\t\t\tpriqueCheckReversed.add(checkBar);\n\n\t\t\t}\n\t\t\tif (startTime + preDuration >= PolledTimeStamp) {\n\t\t\t\t\/\/ overlapped\ub97c true\ub85c \ubc14\uafb8\uace0, endTime\uc744 \uc5f0\uc7a5\n\t\t\t\toverlapped = true;\n\t\t\t\tendTime = endTime + PolledDuration;\n\n\t\t\t} \/\/if\n\t\t\telse {\n\t\t\t\t\/\/ endTime \uc5f0\uc7a5\ud558\uc9c0 \uc54a\uc74c.\n\t\t\t\t\/\/ overlapped flag\ub97c \ub2e4\uc2dc false\ub85c \ubcc0\uacbd.\n\t\t\t\toverlapped = false;\n\t\t\t\t\/\/ \uc5ec\uae30\uc5d0\uc11c priorityQueue\uc5d0 \ub123\uc74c.\n\t\t\t\tJob checkBar = new Job(startTime, endTime-1);\n\t\t\t\t\/\/ \uc2dc\uac04\uc21c\uc73c\ub85c \uc815\ub82c\n\t\t\t\tpriqueCheckReversed.add(checkBar);\n\n\t\t\t} \/\/ else\n\t\t\t\t\/\/\t\t\tSystem.out.println(\"\ud604\uc7ac startTime\" + startTime);\n\t\t\t\t\/\/\t\t\tSystem.out.println(\"\ud604\uc7ac endTime\" + endTime);\n\t\t\t\t\/\/\t\t\tObject[] testArry = priqueCheckReversed.toArray();\n\n\t\t} \/\/ while\n\t\t\/*\n\t\t * System.out.println(\"*****\uc5ec\uae30 \ud655\uc778*******\"); while (!priqueJobsTmp.isEmpty())\n\t\t * System.out.println(priqueJobsTmp.poll());\n\t\t *\/\n\n\t\t\/\/ \uac70\uafb8\ub85c \ub9cc\ub4e0 \ud050 \uc21c\uc11c\ub97c \ub4a4\uc9d1\uc74c.\n\n\t\tPriorityQueue&lt;Job> priqueCheck = new PriorityQueue&lt;>(priqueCheckReversed.size(), Collections.reverseOrder());\n\t\tpriqueCheck.addAll(priqueCheckReversed);\n\t\t\/\/\t\tSystem.out.println(\"\ud050 \ud06c\uae30\" + priqueCheckReversed.size());\n\n\t\tint answer = 0;\n\n\t\tPriorityQueue&lt;Job> priqueJobsOder = new PriorityQueue&lt;Job>();\n\n\t\tint i = 1;\n\t\twhile (!priqueCheck.isEmpty()) {\n\t\t\t\/\/ \uc2dc\uc791\uc2dc\uac01 \ud655\uc778.\n\t\t\tint startTimeCheck = priqueCheck.peek().timeStamp;\n\t\t\tint endTimeCheck = priqueCheck.peek().duration;\n\t\t\tint presentTime = priqueCheck.peek().timeStamp;\n\t\t\t\/\/check\uad6c\uac04\uc758 Jobs\uc744 \uaebc\ub0b8 \ud6c4, \uc6b0\uc120\uc21c\uc704 \ubcc0\uacbd\ud558\uc5ec \ub2e4\uc2dc \ub123\uc5b4\uc90c.\n\t\t\twhile (!priqueJobs.isEmpty()) {\n\t\t\t\tint tmpTimeStamp = priqueJobs.peek().timeStamp;\n\t\t\t\tint tmpDuration = priqueJobs.peek().duration;\n\t\t\t\tif (startTimeCheck &lt;= tmpTimeStamp &amp;&amp; tmpTimeStamp &lt;= endTimeCheck) {\n\t\t\t\t\tJob orderJob = new Job(tmpTimeStamp, tmpDuration);\n\t\t\t\t\torderJob.setFlag(true);\n\t\t\t\t\tpriqueJobsOder.add(orderJob);\n\t\t\t\t\tpriqueJobs.poll();\n\t\t\t\t} \/\/ if\n\t\t\t\telse\n\t\t\t\t\tbreak;\n\n\t\t\t} \/\/while priqueJobs\n\n\t\t\t\/\/\ud55c\ud134 \ub05d\ub09c \ud6c4 reverse order\ub85c \ubcc0\uacbd.\n\t\t\tPriorityQueue&lt;Job> priqueJobsOderNext = new PriorityQueue&lt;>(priqueJobsOder.size(),\n\t\t\t\t\tCollections.reverseOrder());\n\t\t\tpriqueJobsOderNext.addAll(priqueJobsOder);\n\n\t\t\twhile (!priqueJobsOderNext.isEmpty()) {\n\n\t\t\t\tint delay = presentTime - priqueJobsOderNext.peek().timeStamp;\n\t\t\t\tint tmpAnswer = delay + priqueJobsOderNext.peek().duration;\n\t\t\t\tanswer = answer + tmpAnswer;\n\t\t\t\tSystem.out.println(\"answer = \" + answer);\n\t\t\t\tSystem.out.println(\"\ud604\uc7ac\uc2dc\uac01 = \" + presentTime);\n\t\t\t\tSystem.out.println(\"duration = \" + priqueJobsOderNext.peek().duration);\n\t\t\t\tSystem.out.println(\"delay = \" + delay);\n\n\t\t\t\ti++;\n\t\t\t\tpresentTime = presentTime + priqueJobsOderNext.peek().duration;\n\t\t\t\tpriqueJobsOderNext.poll();\n\t\t\t\tpriqueJobsOder.poll();\n\t\t\t} \/\/while (priqueHobsOrderNext)\n\n\t\t\tpriqueCheck.poll();\n\n\t\t} \/\/while priqueCheck\n\n\t\tanswer = answer \/ (i - 1);\n\t\treturn answer;\n\t}\/\/ int solutions(int[][] jobs)\n\n}\n\nclass Job implements Comparable&lt;Job> {\n\tint duration;\n\tint timeStamp;\n\tboolean flag;\n\n\t\/\/ \uae30\ubcf8 \uc0dd\uc131\uc790.\n\tJob() {\n\t\tthis.duration = 0;\n\t\tthis.timeStamp = 0;\n\t\tthis.flag = false;\n\t}\n\n\t\/\/ \uc0dd\uc131\uc790 \uc791\uc131.\n\tJob(int timeStamp, int duration) {\n\t\tthis.timeStamp = timeStamp;\n\t\tthis.duration = duration;\n\t\tthis.flag = false;\n\n\t}\n\n\t@Override\n\tpublic int compareTo(Job arg0) {\n\t\t\/\/ TODO Auto-generated method stub\n\t\tif (!this.flag)\n\t\t\t\/\/ TimeStamp\uac00 \ud070 \uc21c\uc11c\ub300\ub85c poll;\n\t\t\treturn this.timeStamp &lt; arg0.timeStamp ? 1 : -1;\n\t\telse\n\t\t\t\/\/ Duration\uc774 \ud070 \uc21c\uc11c\ub300\ub85c poll\n\t\t\treturn this.duration &lt; arg0.duration ? 1 : -1;\n\n\t}\n\n\t@Override\n\tpublic String toString() { \/\/ TODO Auto-generated method stub\n\t\treturn \"\uc2dc\uac01\" + this.timeStamp + \", \uae30\uac04\" + this.duration;\n\t}\n\n\tpublic void setFlag(boolean flag) {\n\t\tthis.flag = flag;\n\n\t}\n\n} \/\/ Job<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\uc6f9\uc5d0 \uc62c\ub9b0 \uacb0\uacfc\ub294 \ud2c0\ub9bc. \uadf8\ub7ec\ub098 \ub0b4\uac00 \ub9de\ub2e4 \uc0dd\uac01\ud55c\ub2e4. \ubb38\uc81c\ub294 \uc544\ub798\uc640 \uac19\ub2e4. \uc791\uc5c5\uc774 [\uc2dc\uc791 \uc2dc\uac01, \uc791\uc5c5 \uae38\uc774] 2\ucc28\uc6d0 \ubc30\uc5f4\ub85c \ub4e4\uc5b4\uc628\ub2e4. \uc791\uc5c5\uc774 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