시간 제한 메모리 제한 제출 정답 맞은 사람 정답 비율
1 초 128 MB 107 29 24 37.500%

문제

욕심쟁이 순살 배송 Company 는 이름에서 알 수 있듯이 독점적으로 그릇을 배송하는 인터넷 소매 업체이다. 순살은 많은 제조 업체의 저녁 식사 그릇의 폭 넓은 선택을 제공하는 자신을 자랑스러워 한다.

최근에 순살은 비용에 관한 분석을 통해 배송을 하기 위해 포장하는데 많은 비용이 지출된다는 것을 발견했다. 배송을 하기 전에 그릇을 쌓는데  이때 쌓는 시간이 예상보다 오래 걸리는 것이 이유였다. 우리는 이런 순살을 위해 도움을 주려고 한다.

배송되는 그릇들은 여러 제조업체 의 그릇으로 이루어져 있다. 각각의 배송 업체들의 그릇은 쌓여진 채로 온다. 이때 이미 그릇은 위에서 가장 작은거 부터 아래로 가장 큰 걸로 정렬되어 있다. 우리는 순살을 위해 여러 제조 업체가 보내온 여러 개의 정렬된 그릇 더미들을 하나의 정렬된 그릇 더미로 만들어야 한다. 그릇을 하나의 더미로 만들때 두 가지의 동작을 할 수 있다.

  • 분할: 하나의 더미를 두개의 더미로 나눈다.
  • 결합: 두 개의 더미를 하나로 합친다. 이때 위에 쌓인 그릇의 크기는 아래 쌓인 그릇의 크기보다 작거나 같아야 한다.

그릇 더미의 모든 부분이 다른 더미 위에 곧바로 쌓을 수 없을 때에는 분할을 한뒤 일부분만 결합을 해야한다.  아래 그림은 첫 번째 예제를 나타낸다.

그릇 더미들이 주어질 때 단일 더미로 쌓는데 필요한 분할과 결합의 횟수를 구하여라.

입력

각각의 테스트 케이스 첫째 줄에 정수 n이 주어진다 (1 ≤ n ≤ 50).  n은 제조 업체에서 보낸 그릇 더미의 수를 나타낸다. 뒤이어 n개의 줄에는 각각 더미의 높이를 나타내는 h와 뒤이어 더미의 꼭대기 부터 밑까지 h (1 ≤ h ≤ 50) 개의 지름이 순서대로 주어진다. 모든 지름은 최대 10,000 이다. 이때 h개의 숫자는 비 내림차순으로 주어진다.

출력

각각의 테스트 케이스에 대해서 하나의 그릇 더미로 만드는데 필요한 분할과 결합의 최소 횟수를 출력한다.출력 형식은 예제를 참조한다.

예제 입력 1

2
3 1 2 4
2 3 5
3
4 1 1 1 1
4 1 1 1 1
4 1 1 1 1

예제 출력 1

Case 1: 5
Case 2: 2
[{"problem_id":"4213","problem_lang":"0","title":"\uadf8\ub987 \uc313\uae30","description":"<p>\uc695\uc2ec\uc7c1\uc774 \uc21c\uc0b4 \ubc30\uc1a1 Company \ub294 \uc774\ub984\uc5d0\uc11c \uc54c \uc218 \uc788\ub4ef\uc774 \ub3c5\uc810\uc801\uc73c\ub85c \uadf8\ub987\uc744 \ubc30\uc1a1\ud558\ub294 \uc778\ud130\ub137 \uc18c\ub9e4 \uc5c5\uccb4\uc774\ub2e4. \uc21c\uc0b4\uc740 \ub9ce\uc740 \uc81c\uc870 \uc5c5\uccb4\uc758 \uc800\ub141 \uc2dd\uc0ac \uadf8\ub987\uc758 \ud3ed \ub113\uc740 \uc120\ud0dd\uc744 \uc81c\uacf5\ud558\ub294 \uc790\uc2e0\uc744 \uc790\ub791\uc2a4\ub7ec\uc6cc \ud55c\ub2e4.<\/p>\r\n\r\n<p>\ucd5c\uadfc\uc5d0 \uc21c\uc0b4\uc740 \ube44\uc6a9\uc5d0 \uad00\ud55c \ubd84\uc11d\uc744 \ud1b5\ud574 \ubc30\uc1a1\uc744 \ud558\uae30 \uc704\ud574 \ud3ec\uc7a5\ud558\ub294\ub370 \ub9ce\uc740 \ube44\uc6a9\uc774 \uc9c0\ucd9c\ub41c\ub2e4\ub294 \uac83\uc744 \ubc1c\uacac\ud588\ub2e4. \ubc30\uc1a1\uc744 \ud558\uae30 \uc804\uc5d0 \uadf8\ub987\uc744 \uc313\ub294\ub370&nbsp; \uc774\ub54c \uc313\ub294 \uc2dc\uac04\uc774 \uc608\uc0c1\ubcf4\ub2e4 \uc624\ub798 \uac78\ub9ac\ub294 \uac83\uc774 \uc774\uc720\uc600\ub2e4. \uc6b0\ub9ac\ub294 \uc774\ub7f0 \uc21c\uc0b4\uc744 \uc704\ud574 \ub3c4\uc6c0\uc744 \uc8fc\ub824\uace0 \ud55c\ub2e4.<\/p>\r\n\r\n<p>\ubc30\uc1a1\ub418\ub294 \uadf8\ub987\ub4e4\uc740 \uc5ec\ub7ec \uc81c\uc870\uc5c5\uccb4 \uc758 \uadf8\ub987\uc73c\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\ub2e4. \uac01\uac01\uc758 \ubc30\uc1a1 \uc5c5\uccb4\ub4e4\uc758 \uadf8\ub987\uc740 \uc313\uc5ec\uc9c4 \ucc44\ub85c \uc628\ub2e4. \uc774\ub54c \uc774\ubbf8 \uadf8\ub987\uc740 \uc704\uc5d0\uc11c \uac00\uc7a5 \uc791\uc740\uac70 \ubd80\ud130 \uc544\ub798\ub85c \uac00\uc7a5 \ud070 \uac78\ub85c \uc815\ub82c\ub418\uc5b4 \uc788\ub2e4. \uc6b0\ub9ac\ub294 \uc21c\uc0b4\uc744 \uc704\ud574 \uc5ec\ub7ec \uc81c\uc870 \uc5c5\uccb4\uac00 \ubcf4\ub0b4\uc628 \uc5ec\ub7ec \uac1c\uc758 \uc815\ub82c\ub41c \uadf8\ub987 \ub354\ubbf8\ub4e4\uc744 \ud558\ub098\uc758 \uc815\ub82c\ub41c \uadf8\ub987 \ub354\ubbf8\ub85c \ub9cc\ub4e4\uc5b4\uc57c \ud55c\ub2e4. \uadf8\ub987\uc744 \ud558\ub098\uc758 \ub354\ubbf8\ub85c \ub9cc\ub4e4\ub54c \ub450 \uac00\uc9c0\uc758 \ub3d9\uc791\uc744 \ud560 \uc218 \uc788\ub2e4.<\/p>\r\n\r\n<ul>\r\n\t<li>\ubd84\ud560: \ud558\ub098\uc758 \ub354\ubbf8\ub97c \ub450\uac1c\uc758 \ub354\ubbf8\ub85c \ub098\ub208\ub2e4.<\/li>\r\n\t<li>\uacb0\ud569: \ub450 \uac1c\uc758 \ub354\ubbf8\ub97c \ud558\ub098\ub85c \ud569\uce5c\ub2e4. \uc774\ub54c \uc704\uc5d0 \uc313\uc778 \uadf8\ub987\uc758 \ud06c\uae30\ub294 \uc544\ub798 \uc313\uc778 \uadf8\ub987\uc758 \ud06c\uae30\ubcf4\ub2e4 \uc791\uac70\ub098 \uac19\uc544\uc57c \ud55c\ub2e4.<\/li>\r\n<\/ul>\r\n\r\n<p>\uadf8\ub987 \ub354\ubbf8\uc758 \ubaa8\ub4e0 \ubd80\ubd84\uc774 \ub2e4\ub978 \ub354\ubbf8 \uc704\uc5d0 \uace7\ubc14\ub85c \uc313\uc744 \uc218 \uc5c6\uc744 \ub54c\uc5d0\ub294 \ubd84\ud560\uc744 \ud55c\ub4a4 \uc77c\ubd80\ubd84\ub9cc \uacb0\ud569\uc744 \ud574\uc57c\ud55c\ub2e4.&nbsp; \uc544\ub798 \uadf8\ub9bc\uc740 \uccab \ubc88\uc9f8 \uc608\uc81c\ub97c \ub098\ud0c0\ub0b8\ub2e4.<\/p>\r\n\r\n<p><img alt=\"\" src=\"\/upload\/images\/stackingp.png\" \/><\/p>\r\n\r\n<p>\uadf8\ub987 \ub354\ubbf8\ub4e4\uc774 \uc8fc\uc5b4\uc9c8 \ub54c \ub2e8\uc77c \ub354\ubbf8\ub85c \uc313\ub294\ub370 \ud544\uc694\ud55c \ubd84\ud560\uacfc \uacb0\ud569\uc758 \ud69f\uc218\ub97c \uad6c\ud558\uc5ec\ub77c.<\/p>\r\n","input":"<p>\uac01\uac01\uc758 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4 \uccab\uc9f8 \uc904\uc5d0 \uc815\uc218 n\uc774 \uc8fc\uc5b4\uc9c4\ub2e4 (1 &le; n &le; 50).&nbsp; n\uc740 \uc81c\uc870 \uc5c5\uccb4\uc5d0\uc11c \ubcf4\ub0b8 \uadf8\ub987 \ub354\ubbf8\uc758 \uc218\ub97c \ub098\ud0c0\ub0b8\ub2e4. \ub4a4\uc774\uc5b4 n\uac1c\uc758 \uc904\uc5d0\ub294 \uac01\uac01 \ub354\ubbf8\uc758 \ub192\uc774\ub97c \ub098\ud0c0\ub0b4\ub294 h\uc640 \ub4a4\uc774\uc5b4 \ub354\ubbf8\uc758 \uaf2d\ub300\uae30 \ubd80\ud130 \ubc11\uae4c\uc9c0 h (1 &le; h &le; 50) \uac1c\uc758 \uc9c0\ub984\uc774 \uc21c\uc11c\ub300\ub85c \uc8fc\uc5b4\uc9c4\ub2e4. \ubaa8\ub4e0 \uc9c0\ub984\uc740 \ucd5c\ub300 10,000 \uc774\ub2e4. \uc774\ub54c h\uac1c\uc758 \uc22b\uc790\ub294 \ube44 \ub0b4\ub9bc\ucc28\uc21c\uc73c\ub85c \uc8fc\uc5b4\uc9c4\ub2e4.<\/p>\r\n","output":"<p>\uac01\uac01\uc758 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4\uc5d0 \ub300\ud574\uc11c \ud558\ub098\uc758 \uadf8\ub987 \ub354\ubbf8\ub85c \ub9cc\ub4dc\ub294\ub370 \ud544\uc694\ud55c \ubd84\ud560\uacfc \uacb0\ud569\uc758 \ucd5c\uc18c \ud69f\uc218\ub97c \ucd9c\ub825\ud55c\ub2e4.\ucd9c\ub825 \ud615\uc2dd\uc740 \uc608\uc81c\ub97c \ucc38\uc870\ud55c\ub2e4.<\/p>\r\n","hint":"","original":"0","problem_lang_code":"\ud55c\uad6d\uc5b4"},{"problem_id":"4213","problem_lang":"1","title":"Stacking Plates","description":"<p>The Plate Shipping Company is an Internet retailer that, as their name suggests, exclusively sells plates. They pride themselves in offering the widest selection of dinner plates in the universe from a large number of manufacturers.<\/p>\r\n\r\n<p>In a recent cost analysis the company has discovered that they spend a large amount of money on packing the plates for shipment. Part of the reason is that plates have to be stacked before being put into shipping containers. And apparently, this is taking more time than expected. Maybe you can help.<\/p>\r\n\r\n<p>A shipment of plates consists of plates from several manufacturers. The plates from each manufacturer come stacked, that is, each arranged in a single stack with plates ordered by size (the smallest at the top, the largest at the bottom). We will call such a stack properly ordered. To ship all these plates, you must combine them into a single stack, again properly ordered. To join the manufacturers&rsquo; stacks into a single stack, two kinds of operations are allowed:<\/p>\r\n\r\n<ul>\r\n\t<li>Split: a single stack can be split into two stacks by lifting any top portion of the stack and putting it aside to form a new stack.<\/li>\r\n\t<li>Join: two stacks can be joined by putting one on top of the other. This is allowed only if the bottom plate of the top stack is no larger than the top plate of the bottom stack, that is, the joined stack has to be properly ordered.<\/li>\r\n<\/ul>\r\n\r\n<p>Note that a portion of any stack may never be put directly on top of another stack. It must \ufb01rst be split and then the split portion must be joined with the other stack. Given a collection of stacks, you have to \ufb01nd the minimum number of operations that transforms them into a single stack. The following example corresponds to the sample input, and shows how two stacks can be transformed to a single stack in \ufb01ve operations:<\/p>\r\n\r\n<p><img alt=\"\" src=\"\/upload\/images\/stackingp.png\" style=\"height:264px; width:622px\" \/><\/p>\r\n","input":"<p>Each test case starts with a line containing a single integer n (1 &le; n &le; 50), the number of stacks that have to be combined for a shipment. This is followed by n lines, each describing a stack. These lines start with an integer h (1 &le; h &le; 50), the height of the stack. This number is followed by h positive integers that give the diameters of the plates, from top to bottom. All diameters are at most 10 000. These numbers will be in non-decreasing order.<\/p>\r\n","output":"<p>For each test case, display the case number and the minimum number of operations (splits and joins) that have to be performed to combine the given stacks into a single stack.<\/p>\r\n","hint":"","original":"1","problem_lang_code":"\uc601\uc5b4"}]

출처

ACM-ICPC > World Finals > 2012 World Finals K번

  • 문제를 번역한 사람: lll4592