백준 온라인 저지, 자료구조 / 1966번: 프린터큐 (파이썬 / , 백준 실버문제)

문제

여러분도 알다시피 여러분의 프린터 기기는 여러분이 인쇄하고자 하는 문서를 인쇄 명령을 받은 ‘순서대로’, 즉 먼저 요청된 것을 먼저 인쇄한다. 여러 개의 문서가 쌓인다면 Queue 자료구조에 쌓여서 FIFO - First In First Out - 에 따라 인쇄가 되게 된다. 하지만 상근이는 새로운 프린터기 내부 소프트웨어를 개발하였는데, 이 프린터기는 다음과 같은 조건에 따라 인쇄를 하게 된다.

1. 현재 Queue의 가장 앞에 있는 문서의 ‘중요도’를 확인한다.
2. 나머지 문서들 중 현재 문서보다 중요도가 높은 문서가 하나라도 있다면, 이 문서를 인쇄하지 않고 Queue의 가장 뒤에 재배치 한다. 그렇지 않다면 바로 인쇄를 한다.

예를 들어 Queue에 4개의 문서(A B C D)가 있고, 중요도가 2 1 4 3 라면 C를 인쇄하고, 다음으로 D를 인쇄하고 A, B를 인쇄하게 된다.

여러분이 할 일은, 현재 Queue에 있는 문서의 수와 중요도가 주어졌을 때, 어떤 한 문서가 몇 번째로 인쇄되는지 알아내는 것이다. 예를 들어 위의 예에서 C문서는 1번째로, A문서는 3번째로 인쇄되게 된다.

입력

첫 줄에 테스트케이스의 수가 주어진다. 각 테스트케이스는 두 줄로 이루어져 있다.

테스트케이스의 첫 번째 줄에는 문서의 개수 N(1 ≤ N ≤ 100)과, 몇 번째로 인쇄되었는지 궁금한 문서가 현재 Queue에서 몇 번째에 놓여 있는지를 나타내는 정수 M(0 ≤ M < N)이 주어진다. 이때 맨 왼쪽은 0번째라고 하자. 두 번째 줄에는 N개 문서의 중요도가 차례대로 주어진다. 중요도는 1 이상 9 이하의 정수이고, 중요도가 같은 문서가 여러 개 있을 수도 있다.

출력

각 테스트 케이스에 대해 문서가 몇 번째로 인쇄되는지 출력한다.

제한

예제 입력 1

3
1 0
5
4 2
1 2 3 4
6 0
1 1 9 1 1 1

예제 출력 1

1
2
5

힌트

[{"problem_id":"1966","problem_lang":"0","title":"\ud504\ub9b0\ud130 \ud050","description":"<p>\uc5ec\ub7ec\ubd84\ub3c4 \uc54c\ub2e4\uc2dc\ud53c \uc5ec\ub7ec\ubd84\uc758 \ud504\ub9b0\ud130 \uae30\uae30\ub294 \uc5ec\ub7ec\ubd84\uc774 \uc778\uc1c4\ud558\uace0\uc790 \ud558\ub294 \ubb38\uc11c\ub97c \uc778\uc1c4 \uba85\ub839\uc744 \ubc1b\uc740 &lsquo;\uc21c\uc11c\ub300\ub85c&rsquo;, \uc989 \uba3c\uc800 \uc694\uccad\ub41c \uac83\uc744 \uba3c\uc800 \uc778\uc1c4\ud55c\ub2e4. \uc5ec\ub7ec \uac1c\uc758 \ubb38\uc11c\uac00 \uc313\uc778\ub2e4\uba74 Queue \uc790\ub8cc\uad6c\uc870\uc5d0 \uc313\uc5ec\uc11c FIFO - First In First Out - \uc5d0 \ub530\ub77c \uc778\uc1c4\uac00 \ub418\uac8c \ub41c\ub2e4. \ud558\uc9c0\ub9cc \uc0c1\uadfc\uc774\ub294 \uc0c8\ub85c\uc6b4 \ud504\ub9b0\ud130\uae30 \ub0b4\ubd80 \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub97c \uac1c\ubc1c\ud558\uc600\ub294\ub370, \uc774 \ud504\ub9b0\ud130\uae30\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uc870\uac74\uc5d0 \ub530\ub77c \uc778\uc1c4\ub97c \ud558\uac8c \ub41c\ub2e4.<\/p>\r\n\r\n<ol>\r\n\t<li>\ud604\uc7ac Queue\uc758 \uac00\uc7a5 \uc55e\uc5d0 \uc788\ub294 \ubb38\uc11c\uc758 &lsquo;\uc911\uc694\ub3c4&rsquo;\ub97c \ud655\uc778\ud55c\ub2e4.<\/li>\r\n\t<li>\ub098\uba38\uc9c0 \ubb38\uc11c\ub4e4 \uc911 \ud604\uc7ac \ubb38\uc11c\ubcf4\ub2e4 \uc911\uc694\ub3c4\uac00 \ub192\uc740 \ubb38\uc11c\uac00 \ud558\ub098\ub77c\ub3c4 \uc788\ub2e4\uba74, \uc774 \ubb38\uc11c\ub97c \uc778\uc1c4\ud558\uc9c0 \uc54a\uace0 Queue\uc758 \uac00\uc7a5 \ub4a4\uc5d0 \uc7ac\ubc30\uce58 \ud55c\ub2e4. \uadf8\ub807\uc9c0 \uc54a\ub2e4\uba74 \ubc14\ub85c \uc778\uc1c4\ub97c \ud55c\ub2e4.<\/li>\r\n<\/ol>\r\n\r\n<p>\uc608\ub97c \ub4e4\uc5b4 Queue\uc5d0 4\uac1c\uc758 \ubb38\uc11c(A B C D)\uac00 \uc788\uace0, \uc911\uc694\ub3c4\uac00 2 1 4 3 \ub77c\uba74 C\ub97c \uc778\uc1c4\ud558\uace0, \ub2e4\uc74c\uc73c\ub85c D\ub97c \uc778\uc1c4\ud558\uace0 A, B\ub97c \uc778\uc1c4\ud558\uac8c \ub41c\ub2e4.<\/p>\r\n\r\n<p>\uc5ec\ub7ec\ubd84\uc774 \ud560 \uc77c\uc740, \ud604\uc7ac Queue\uc5d0 \uc788\ub294 \ubb38\uc11c\uc758 \uc218\uc640 \uc911\uc694\ub3c4\uac00 \uc8fc\uc5b4\uc84c\uc744 \ub54c, \uc5b4\ub5a4 \ud55c \ubb38\uc11c\uac00 \uba87 \ubc88\uc9f8\ub85c \uc778\uc1c4\ub418\ub294\uc9c0 \uc54c\uc544\ub0b4\ub294 \uac83\uc774\ub2e4. \uc608\ub97c \ub4e4\uc5b4 \uc704\uc758 \uc608\uc5d0\uc11c C\ubb38\uc11c\ub294 1\ubc88\uc9f8\ub85c, A\ubb38\uc11c\ub294 3\ubc88\uc9f8\ub85c \uc778\uc1c4\ub418\uac8c \ub41c\ub2e4.<\/p>\r\n","input":"<p>\uccab \uc904\uc5d0 \ud14c\uc2a4\ud2b8\ucf00\uc774\uc2a4\uc758 \uc218\uac00 \uc8fc\uc5b4\uc9c4\ub2e4. \uac01 \ud14c\uc2a4\ud2b8\ucf00\uc774\uc2a4\ub294 \ub450 \uc904\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\ub2e4.<\/p>\r\n\r\n<p>\ud14c\uc2a4\ud2b8\ucf00\uc774\uc2a4\uc758 \uccab \ubc88\uc9f8 \uc904\uc5d0\ub294 \ubb38\uc11c\uc758 \uac1c\uc218 N(1 &le; N &le; 100)\uacfc, \uba87 \ubc88\uc9f8\ub85c \uc778\uc1c4\ub418\uc5c8\ub294\uc9c0 \uad81\uae08\ud55c \ubb38\uc11c\uac00 \ud604\uc7ac Queue\uc5d0\uc11c \uba87 \ubc88\uc9f8\uc5d0 \ub193\uc5ec \uc788\ub294\uc9c0\ub97c \ub098\ud0c0\ub0b4\ub294 \uc815\uc218 M(0 &le; M &lt; N)\uc774 \uc8fc\uc5b4\uc9c4\ub2e4. \uc774\ub54c \ub9e8 \uc67c\ucabd\uc740 0\ubc88\uc9f8\ub77c\uace0 \ud558\uc790. \ub450 \ubc88\uc9f8 \uc904\uc5d0\ub294 N\uac1c \ubb38\uc11c\uc758 \uc911\uc694\ub3c4\uac00 \ucc28\ub840\ub300\ub85c \uc8fc\uc5b4\uc9c4\ub2e4. \uc911\uc694\ub3c4\ub294 1 \uc774\uc0c1 9 \uc774\ud558\uc758 \uc815\uc218\uc774\uace0, \uc911\uc694\ub3c4\uac00 \uac19\uc740 \ubb38\uc11c\uac00 \uc5ec\ub7ec \uac1c \uc788\uc744 \uc218\ub3c4 \uc788\ub2e4.<\/p>\r\n","output":"<p>\uac01 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4\uc5d0 \ub300\ud574 \ubb38\uc11c\uac00 \uba87 \ubc88\uc9f8\ub85c \uc778\uc1c4\ub418\ub294\uc9c0 \ucd9c\ub825\ud55c\ub2e4.<\/p>\r\n","hint":"","original":"0","html_title":"0","problem_lang_tcode":"Korean"},{"problem_id":"1966","problem_lang":"1","title":"Printer Queue","description":"<p>The only printer in the computer science students&rsquo; union is experiencing an extremely heavy workload. Sometimes there are a hundred jobs in the printer queue and you may have to wait for hours to get a single page of output.<\/p>\r\n\r\n<p>Because some jobs are more important than others, the Hacker General has invented and implemented a simple priority system for the print job queue. Now, each job is assigned a priority between 1 and 9 (with 9 being the highest priority, and 1 being the lowest), and the printer operates as follows.<\/p>\r\n\r\n<p>The first job J in queue is taken from the queue.<br \/>\r\nIf there is some job in the queue with a higher priority than job J, then move J to the end of the queue without printing it.<br \/>\r\nOtherwise, print job J (and do not put it back in the queue).<\/p>\r\n\r\n<p>In this way, all those important muffin recipes that the Hacker General is printing get printed very quickly. Of course, those annoying term papers that others are printing may have to wait for quite some time to get printed, but that&rsquo;s life.<\/p>\r\n\r\n<p>Your problem with the new policy is that it has become quite tricky to determine when your print job will actually be completed. You decide to write a program to \ufb01gure this out. The program will be given the current queue (as a list of priorities) as well as the position of your job in the queue, and must then calculate how long it will take until your job is printed, assuming that no additional jobs will be added to the queue. To simplify matters, we assume that printing a job always takes exactly one minute, and that adding and removing jobs from the queue is instantaneous.<\/p>\r\n","input":"<p>One line with a positive integer: the number of test cases (at most 100). Then for each test case:<\/p>\r\n\r\n<ul>\r\n\t<li>One line with two integers n and m, where n is the number of jobs in the queue (1 &le; n &le; 100) and m is the position of your job (0 &le; m &le; n&minus;1). The \ufb01rst position in the queue is number 0, the second is number 1, and so on.<\/li>\r\n\t<li>One line withn integers in the range 1 to 9, giving the priorities of the jobs in the queue. The first integer gives the priority of the \ufb01rst job, the second integer the priority of the second job, and so on.<\/li>\r\n<\/ul>\r\n","output":"<p>For each test case, print one line with a single integer; the number of minutes until your job is completely printed, assuming that no additional print jobs will arrive.<\/p>\r\n","hint":"","original":"1","html_title":"0","problem_lang_tcode":"English"}]

접근 방법

코드

# https://www.acmicpc.net/problem/1966
from collections import deque
tc = int(input())
for _ in range(tc):
    n, m = map(int, input().split())
    arr = list(map(int, input().split()))
    queue = deque(arr)
    arr.sort()
    count = 0
    while queue:
        x = queue.popleft()
        if arr[-1] == x:
            count += 1
            arr.pop()
            if m == 0:
                print(count)
                break
        else:
            queue.append(x)
        m -= 1
        if m < 0:
            m = len(queue) - 1