시간 제한 메모리 제한 제출 정답 맞은 사람 정답 비율
1 초 128 MB 367 103 72 36.923%

문제

지난주에 상그니 아라비아의 국왕 고둘라 창지즈 영사우드가 한국에 도착했다. 고둘라는 매우 중요한 사람이다. 따라서, 경찰은 그가 타고 있는 차량이 길에 진입했을 때, 그가 길에 있는 동안에 다른 차량이 들어올 수 없게 통제할 것이다. 하지만, 그가 진입하기 전부터 길에 있던 차량은 계속 있을 수 있다.

상근이는 오토바이 소년 승환이의 뒤를 이어 근처에서 피자를 트럭으로 배달하는 사람이다. 상근이는 교통 통제 때문에 배달을 정시에 하지 못해서 짤릴뻔했다.

이미 고둘라 창지즈 영사우드는 상그니 아라비아로 돌아갔다. 하지만 상근이는 고둘라가 한국에 왔었을 때, 어떤 길로 이동을 했어야 배달을 빠르게 할 수 있었는지 알아보려고 한다. 상근이는 고둘라가 이동한 경로를 알고 있다.

도시는 여러 개의 교차로와 교차로를 서로 연결하는 양방향 도로로 모델링할 수 있다. 상근이는 각 도로를 이동하는데 걸리는 시간을 알고 있다. 고둘라가 그 도로를 이동하는데 걸리는 시간도 같다.

예를 들어, 고둘라가 10분이 되던 때에 어떤 도로에 도착했고, 그 도로를 통과하는데 걸리는 시간이 5라고 하자. 그럼 이 도로는 10, 11, 12, 13, 14분에는 진입할 수 없다. 상근이는 9분 이전, 15분 이후에 이 도로에 진입할 수 있다.

상근이가 배달을 하는데 걸리는 시간의 최솟값을 구하는 프로그램을 작성하시오. 상근이는 고둘라가 출발하고 K분이 지난 후에 배달을 시작한다.

입력

첫째 줄에 교차로의 수 N과 도로의 수 M이 주어진다. 교차로는 1번부터 N번까지 번호가 매겨져 있다. (2 ≤ N ≤ 1000, 2 ≤ M ≤ 10,000)

둘째 줄에는 네 정수 A, B, K, G가 주어진다. (1 ≤ A, B ≤ N, 0 ≤ K ≤ 1000, 0 ≤ G ≤ 1000) A는 상근이가 배달을 시작하는 교차로, B는 상근이가 배달을 마치는 교차로이다. K는 고둘라가 출발한 시간과 상근이가 출발한 시간의 차이, G는 고둘라가 방문하는 교차로의 개수이다.

셋째 줄에는 G개의 정수가 주어진다.이 정수는 고둘라가 방문하는 교차로이다. 인접한 교차로 사이의 거리를 고둘라가 이동하는 것이다. 항상 도로는 존재하며, 각 도로를 최대 한 번만 이동한다.

넷째 줄부터 M개 줄에는 도로의 정보를 나타내는 세 정수 U, V, L이 주어진다. 교차로 U와 V를 연결하는 도로를 이동하는데 L분이 걸린다는 뜻이다. L은 1보다 크거나 같고, 1000보다 작거나 같은 정수이다.

출력

첫째 줄에 상근이가 배달을 마치는데 필요한 가장 빠른 시간을 출력한다.

예제 입력 1

6 5
1 6 20 4
5 3 2 4
1 2 2
2 3 8
2 4 3
3 6 10
3 5 15

예제 출력 1

21
[{"problem_id":"2982","problem_lang":"0","title":"\uad6d\uc655\uc758 \ubc29\ubb38","description":"<p>\uc9c0\ub09c\uc8fc\uc5d0 \uc0c1\uadf8\ub2c8 \uc544\ub77c\ube44\uc544\uc758 \uad6d\uc655 \uace0\ub458\ub77c \ucc3d\uc9c0\uc988 \uc601\uc0ac\uc6b0\ub4dc\uac00 \ud55c\uad6d\uc5d0 \ub3c4\ucc29\ud588\ub2e4. \uace0\ub458\ub77c\ub294 \ub9e4\uc6b0 \uc911\uc694\ud55c \uc0ac\ub78c\uc774\ub2e4. \ub530\ub77c\uc11c, \uacbd\ucc30\uc740 \uadf8\uac00 \ud0c0\uace0 \uc788\ub294 \ucc28\ub7c9\uc774 \uae38\uc5d0 \uc9c4\uc785\ud588\uc744 \ub54c, \uadf8\uac00 \uae38\uc5d0 \uc788\ub294 \ub3d9\uc548\uc5d0 \ub2e4\ub978 \ucc28\ub7c9\uc774 \ub4e4\uc5b4\uc62c \uc218 \uc5c6\uac8c \ud1b5\uc81c\ud560 \uac83\uc774\ub2e4. \ud558\uc9c0\ub9cc, \uadf8\uac00 \uc9c4\uc785\ud558\uae30 \uc804\ubd80\ud130 \uae38\uc5d0 \uc788\ub358 \ucc28\ub7c9\uc740 \uacc4\uc18d \uc788\uc744 \uc218 \uc788\ub2e4.<\/p>\r\n\r\n<p>\uc0c1\uadfc\uc774\ub294 \uc624\ud1a0\ubc14\uc774 \uc18c\ub144 \uc2b9\ud658\uc774\uc758 \ub4a4\ub97c \uc774\uc5b4 \uadfc\ucc98\uc5d0\uc11c \ud53c\uc790\ub97c \ud2b8\ub7ed\uc73c\ub85c \ubc30\ub2ec\ud558\ub294 \uc0ac\ub78c\uc774\ub2e4. \uc0c1\uadfc\uc774\ub294 \uad50\ud1b5 \ud1b5\uc81c \ub54c\ubb38\uc5d0 \ubc30\ub2ec\uc744 \uc815\uc2dc\uc5d0 \ud558\uc9c0 \ubabb\ud574\uc11c \uc9e4\ub9b4\ubed4\ud588\ub2e4.<\/p>\r\n\r\n<p>\uc774\ubbf8 \uace0\ub458\ub77c \ucc3d\uc9c0\uc988 \uc601\uc0ac\uc6b0\ub4dc\ub294 \uc0c1\uadf8\ub2c8 \uc544\ub77c\ube44\uc544\ub85c \ub3cc\uc544\uac14\ub2e4. \ud558\uc9c0\ub9cc \uc0c1\uadfc\uc774\ub294 \uace0\ub458\ub77c\uac00 \ud55c\uad6d\uc5d0 \uc654\uc5c8\uc744 \ub54c, \uc5b4\ub5a4 \uae38\ub85c \uc774\ub3d9\uc744 \ud588\uc5b4\uc57c \ubc30\ub2ec\uc744 \ube60\ub974\uac8c \ud560 \uc218 \uc788\uc5c8\ub294\uc9c0 \uc54c\uc544\ubcf4\ub824\uace0 \ud55c\ub2e4. \uc0c1\uadfc\uc774\ub294 \uace0\ub458\ub77c\uac00 \uc774\ub3d9\ud55c \uacbd\ub85c\ub97c \uc54c\uace0 \uc788\ub2e4.<\/p>\r\n\r\n<p>\ub3c4\uc2dc\ub294 \uc5ec\ub7ec \uac1c\uc758 \uad50\ucc28\ub85c\uc640 \uad50\ucc28\ub85c\ub97c \uc11c\ub85c \uc5f0\uacb0\ud558\ub294 \uc591\ubc29\ud5a5 \ub3c4\ub85c\ub85c \ubaa8\ub378\ub9c1\ud560 \uc218 \uc788\ub2e4. \uc0c1\uadfc\uc774\ub294 \uac01 \ub3c4\ub85c\ub97c \uc774\ub3d9\ud558\ub294\ub370 \uac78\ub9ac\ub294 \uc2dc\uac04\uc744 \uc54c\uace0 \uc788\ub2e4. \uace0\ub458\ub77c\uac00 \uadf8 \ub3c4\ub85c\ub97c \uc774\ub3d9\ud558\ub294\ub370 \uac78\ub9ac\ub294 \uc2dc\uac04\ub3c4 \uac19\ub2e4.<\/p>\r\n\r\n<p>\uc608\ub97c \ub4e4\uc5b4, \uace0\ub458\ub77c\uac00 10\ubd84\uc774 \ub418\ub358 \ub54c\uc5d0 \uc5b4\ub5a4 \ub3c4\ub85c\uc5d0 \ub3c4\ucc29\ud588\uace0, \uadf8 \ub3c4\ub85c\ub97c \ud1b5\uacfc\ud558\ub294\ub370 \uac78\ub9ac\ub294 \uc2dc\uac04\uc774 5\ub77c\uace0 \ud558\uc790. \uadf8\ub7fc \uc774 \ub3c4\ub85c\ub294 10, 11, 12, 13, 14\ubd84\uc5d0\ub294 \uc9c4\uc785\ud560 \uc218 \uc5c6\ub2e4. \uc0c1\uadfc\uc774\ub294 9\ubd84 \uc774\uc804, 15\ubd84 \uc774\ud6c4\uc5d0 \uc774 \ub3c4\ub85c\uc5d0 \uc9c4\uc785\ud560 \uc218 \uc788\ub2e4.<\/p>\r\n\r\n<p>\uc0c1\uadfc\uc774\uac00 \ubc30\ub2ec\uc744 \ud558\ub294\ub370 \uac78\ub9ac\ub294 \uc2dc\uac04\uc758 \ucd5c\uc19f\uac12\uc744 \uad6c\ud558\ub294 \ud504\ub85c\uadf8\ub7a8\uc744 \uc791\uc131\ud558\uc2dc\uc624. \uc0c1\uadfc\uc774\ub294 \uace0\ub458\ub77c\uac00 \ucd9c\ubc1c\ud558\uace0 K\ubd84\uc774 \uc9c0\ub09c \ud6c4\uc5d0 \ubc30\ub2ec\uc744 \uc2dc\uc791\ud55c\ub2e4.<\/p>\r\n","input":"<p>\uccab\uc9f8 \uc904\uc5d0 \uad50\ucc28\ub85c\uc758 \uc218 N\uacfc \ub3c4\ub85c\uc758 \uc218 M\uc774 \uc8fc\uc5b4\uc9c4\ub2e4. \uad50\ucc28\ub85c\ub294 1\ubc88\ubd80\ud130 N\ubc88\uae4c\uc9c0 \ubc88\ud638\uac00 \ub9e4\uaca8\uc838 \uc788\ub2e4. (2 &le; N &le; 1000, 2 &le; M &le; 10,000)<\/p>\r\n\r\n<p>\ub458\uc9f8 \uc904\uc5d0\ub294 \ub124 \uc815\uc218 A, B, K, G\uac00 \uc8fc\uc5b4\uc9c4\ub2e4. (1 &le; A, B &le; N, 0 &le; K &le; 1000, 0 &le; G &le; 1000) A\ub294 \uc0c1\uadfc\uc774\uac00 \ubc30\ub2ec\uc744 \uc2dc\uc791\ud558\ub294 \uad50\ucc28\ub85c, B\ub294 \uc0c1\uadfc\uc774\uac00 \ubc30\ub2ec\uc744 \ub9c8\uce58\ub294 \uad50\ucc28\ub85c\uc774\ub2e4. K\ub294 \uace0\ub458\ub77c\uac00 \ucd9c\ubc1c\ud55c \uc2dc\uac04\uacfc \uc0c1\uadfc\uc774\uac00 \ucd9c\ubc1c\ud55c \uc2dc\uac04\uc758 \ucc28\uc774, G\ub294 \uace0\ub458\ub77c\uac00 \ubc29\ubb38\ud558\ub294 \uad50\ucc28\ub85c\uc758 \uac1c\uc218\uc774\ub2e4.<\/p>\r\n\r\n<p>\uc14b\uc9f8 \uc904\uc5d0\ub294 G\uac1c\uc758 \uc815\uc218\uac00 \uc8fc\uc5b4\uc9c4\ub2e4.\uc774 \uc815\uc218\ub294 \uace0\ub458\ub77c\uac00 \ubc29\ubb38\ud558\ub294 \uad50\ucc28\ub85c\uc774\ub2e4. \uc778\uc811\ud55c \uad50\ucc28\ub85c \uc0ac\uc774\uc758 \uac70\ub9ac\ub97c \uace0\ub458\ub77c\uac00 \uc774\ub3d9\ud558\ub294 \uac83\uc774\ub2e4. \ud56d\uc0c1 \ub3c4\ub85c\ub294 \uc874\uc7ac\ud558\uba70, \uac01 \ub3c4\ub85c\ub97c \ucd5c\ub300 \ud55c \ubc88\ub9cc \uc774\ub3d9\ud55c\ub2e4.<\/p>\r\n\r\n<p>\ub137\uc9f8 \uc904\ubd80\ud130 M\uac1c \uc904\uc5d0\ub294 \ub3c4\ub85c\uc758 \uc815\ubcf4\ub97c \ub098\ud0c0\ub0b4\ub294 \uc138 \uc815\uc218 U, V, L\uc774 \uc8fc\uc5b4\uc9c4\ub2e4. \uad50\ucc28\ub85c U\uc640 V\ub97c \uc5f0\uacb0\ud558\ub294 \ub3c4\ub85c\ub97c \uc774\ub3d9\ud558\ub294\ub370 L\ubd84\uc774 \uac78\ub9b0\ub2e4\ub294 \ub73b\uc774\ub2e4. L\uc740 1\ubcf4\ub2e4 \ud06c\uac70\ub098 \uac19\uace0, 1000\ubcf4\ub2e4 \uc791\uac70\ub098 \uac19\uc740 \uc815\uc218\uc774\ub2e4.<\/p>\r\n","output":"<p>\uccab\uc9f8 \uc904\uc5d0 \uc0c1\uadfc\uc774\uac00 \ubc30\ub2ec\uc744 \ub9c8\uce58\ub294\ub370 \ud544\uc694\ud55c \uac00\uc7a5 \ube60\ub978 \uc2dc\uac04\uc744 \ucd9c\ub825\ud55c\ub2e4.<\/p>\r\n","hint":"","original":"0","problem_lang_code":"\ud55c\uad6d\uc5b4"},{"problem_id":"2982","problem_lang":"1","title":"GEORGE","description":"<p>Last week Mister George visited Croatia. Since Mister George is a very important person, while he was in a street, the police disallowed entry to that street, but vehicles that entered the street before Mister George could continue driving.&nbsp;<\/p>\r\n\r\n<p>While Mister George was visiting, Luka drove his truck around town. But because of some of the streets being closed off, he couldn&#39;t make his delivery in time and almost lost his job. Although it is late now, he is wondering how he could have planned his delivery better i.e. what would have been the least time needed to make his delivery while Mister George was visiting. He knows the route mister George took.&nbsp;<\/p>\r\n\r\n<p>The city is modeled with intersections and two-way streets connecting them. For each street, Luka knows how much time he needs to traverse it (mister George needs the same amount of time).&nbsp;<\/p>\r\n\r\n<p>For example, if Mister George starts traversing a street during minute 10 and needs 5 minutes to exit it, this street will be blocked during minutes 10, 11, 12, 13 and 14. Luka can enter the street during minutes 9 and earlier, or 15 and later.&nbsp;<\/p>\r\n\r\n<p>Write a program that calculates the least amount of time Luka needs to make his delivery, if he starts driving K minutes after the arrival of Mister George.&nbsp;<\/p>\r\n","input":"<p>The first line contains two integers N and M (2 &le; N &le; 1000, 2 &le; M &le; 10 000), the number of intersections and the number of streets. The intersections are numbered 1 to N.&nbsp;<\/p>\r\n\r\n<p>The second line contains four integers A, B, K and G (1 &le; A, B &le; N, 0 &le; K &le; 1000, 0 &le; G &le; 1000). These are, in order:&nbsp;<\/p>\r\n\r\n<ul>\r\n\t<li>The intersection where Luka starts;&nbsp;<\/li>\r\n\t<li>The intersection Luka must get to;&nbsp;<\/li>\r\n\t<li>The difference in starting times between mister George and Luka (Luka starts at intersection A exactly K minutes after mister George starts his route);&nbsp;<\/li>\r\n\t<li>The number of intersections on Mister George&#39;s route.&nbsp;<\/li>\r\n<\/ul>\r\n\r\n<p>The third line contains G integers, the labels of intersections mister George will visit. Every pair of adjacent integers denotes a street he will traverse. That street will exist and Mister George will traverse every street at most once.&nbsp;<\/p>\r\n\r\n<p>Each of the following M lines contains three integers A, B and L, meaning that there is a street between intersection A and B, and it takes L minutes to traverse. L will be between 1 and 1000.&nbsp;<\/p>\r\n","output":"<p>Output the least amount of time (in minutes) Luka needs to make his delivery.<\/p>\r\n","hint":"","original":"1","problem_lang_code":"\uc601\uc5b4"}]

출처

Contest > Croatian Open Competition in Informatics > COCI 2007/2008 > Contest #6 4번