시간 제한 메모리 제한 제출 정답 맞은 사람 정답 비율
1 초 128 MB 2577 399 259 14.114%

문제

오늘은 할로윈이다. 상근이와 친구들은 할로윈을 기념하기 위해 묘지를 방문했다. 상근이와 친구들은 한 명씩 묘지로 들어가고, 혼자서 묘지의 출구를 찾아야 한다. 이제, 상근이의 차례가 돌아왔다.

상근이가 어렸을 적에 할머니는 상근이에게 할로윈 밤에 묘지에는 귀신 구멍이 나타난다고 말해주었다. 귀신 구멍으로 들어가면, 묘지의 다른 장소로 다시 나오게 된다. 이 구멍은 시간을 이동할 수 있는 구멍이다. 귀신 구멍에 떨어지면, 특정 시간이 지난 후(또는 이전)에 평행 우주의 다른 구멍에서 나오게 된다. 

묘지는 W × H 크기의 그리드로 나타낼 수 있다. 묘지의 입구는 (0, 0)이고, 출구는 (W-1, H-1)이다. 상근이는 겁이 많기 때문에, 최대한 빨리 묘지를 나가려고 한다. 그리고 상근이는 이동하던 도중 출구에 도달하면 뒤도 돌아보지 않고 그 즉시 묘지를 빠져나갈 생각이다. 상근이는 현재 있는 칸과 동, 서, 남, 북으로 인접한 칸으로 이동할 수 있다. 각 칸은 잔디, 묘비, 또는 귀신 구멍이다.

  • 묘비는 매우 높기 때문에, 묘비가 있는 칸으로는 이동할 수 없다.
  • 귀신 구멍이 있는 칸으로 이동하면, 특정 시간이 지난 후에 묘지의 다른 곳에서 상근이가 나타나게 된다. 시간은 귀신 구멍마다 다르며, 양수, 음수, 0 중 하나이다.
  • 잔디가 있는 칸으로는 자유롭게 이동할 수 있다.

상근이는 묘지를 빨리 나가기 위해 귀신 구멍도 이용할 것이다. 묘지를 나갈 수 없는 경우나, 계속해서 과거로 이동하는 경우가 존재할 수도 있다.

묘지가 위와 같이 생긴 경우(문제의 두 번째 예제)를 살펴보자. 묘비는 (2,1)와 (3,1)에 있고, 귀신 구멍은 0초만에 (3,0)로 들어가서 (2,2)에서 나오는 구멍 하나가 있다. 묘지를 빠져나오는데 걸리는 가장 빠른 시간은 4초이며, 다음과 같다.

(0,0) -> 동(1초) (1,0) -> 동(1초) (2,0) -> 동(1초) (3,0) -> 귀신구멍(0초) (2,2) -> 동(1초) (3,2)

귀신 구멍을 이용하지 않는다면 가장 빠른 시간은 5초이다.

입력

입력은 여러 개의 테스트 케이스로 이루어져 있다.

각 테스트 케이스의 첫째 줄에는 묘지의 너비 W와 높이 H가 주어진다. (1 ≤ W, H ≤ 30) 다음 줄에는 묘비의 개수 G (G ≥ 0)가 주어진다. 다음 G개 줄에는 묘비의 위치를 나타내는 두 정수 X와 Y가 주어진다. (0 ≤ X < W, 0 ≤ Y < H)

다음 줄에는 귀신 구멍의 수 E (E ≥ 0)가 주어진다. 다음 E개 줄에는 귀신 구멍의 정보를 나타내는 X1, Y1, X2, Y2, T 가 주어진다. (X1, Y1)은 귀신 구멍의 위치이고, (X2, Y2)는 그 귀신 구멍으로 들어갔을 때, 나오는 곳의 위치이다. (0 ≤ X1, X2 < W, 0 ≤ Y1, Y2 < H) (X1,Y1)과 (X2,Y2)가 같을 수도 있다. T는 귀신 구멍에서 나오는데 걸리는 시간이다. (-10,000 ≤ T ≤ 10,000) T가 양수인 경우에는 귀신 구멍을 들어간 이후에 나온다는 의미이다. 두 귀신 구멍이 같은 장소에 있거나, 구멍에서 나오는 지점이 묘비인 경우는 없다. 묘비와 귀신 구멍이 (0, 0)이나 (W-1, H-1)에 있는 경우는 없다.

입력의 마지막 줄에는 0 0이 주어진다.

출력

각 테스트 케이스 마다 상근이가 과거로 계속해서 돌아간다면 "Never"를 출력하고, 출구를 빠져나올 수 없으면 "Impossible"을 출력한다. 그 외의 경우에는 묘지를 빠져나오는데 가장 빠른 시간을 출력한다.

예제 입력 1

3 3
2
2 1
1 2
0
4 3
2
2 1
3 1
1
3 0 2 2 0
4 2
0
1
2 0 1 0 -3
0 0

예제 출력 1

Impossible
4
Never
[{"problem_id":"3860","problem_lang":"0","title":"\ud560\ub85c\uc708 \ubb18\uc9c0","description":"<p>\uc624\ub298\uc740 \ud560\ub85c\uc708\uc774\ub2e4. \uc0c1\uadfc\uc774\uc640 \uce5c\uad6c\ub4e4\uc740 \ud560\ub85c\uc708\uc744 \uae30\ub150\ud558\uae30 \uc704\ud574 \ubb18\uc9c0\ub97c \ubc29\ubb38\ud588\ub2e4. \uc0c1\uadfc\uc774\uc640 \uce5c\uad6c\ub4e4\uc740 \ud55c \uba85\uc529 \ubb18\uc9c0\ub85c \ub4e4\uc5b4\uac00\uace0, \ud63c\uc790\uc11c \ubb18\uc9c0\uc758 \ucd9c\uad6c\ub97c \ucc3e\uc544\uc57c \ud55c\ub2e4. \uc774\uc81c, \uc0c1\uadfc\uc774\uc758 \ucc28\ub840\uac00 \ub3cc\uc544\uc654\ub2e4.<\/p>\r\n\r\n<p>\uc0c1\uadfc\uc774\uac00 \uc5b4\ub838\uc744 \uc801\uc5d0 \ud560\uba38\ub2c8\ub294 \uc0c1\uadfc\uc774\uc5d0\uac8c \ud560\ub85c\uc708 \ubc24\uc5d0 \ubb18\uc9c0\uc5d0\ub294 \uadc0\uc2e0 \uad6c\uba4d\uc774 \ub098\ud0c0\ub09c\ub2e4\uace0 \ub9d0\ud574\uc8fc\uc5c8\ub2e4. \uadc0\uc2e0 \uad6c\uba4d\uc73c\ub85c \ub4e4\uc5b4\uac00\uba74, \ubb18\uc9c0\uc758 \ub2e4\ub978 \uc7a5\uc18c\ub85c \ub2e4\uc2dc \ub098\uc624\uac8c \ub41c\ub2e4. \uc774 \uad6c\uba4d\uc740 \uc2dc\uac04\uc744 \uc774\ub3d9\ud560 \uc218 \uc788\ub294 \uad6c\uba4d\uc774\ub2e4. \uadc0\uc2e0 \uad6c\uba4d\uc5d0 \ub5a8\uc5b4\uc9c0\uba74, \ud2b9\uc815 \uc2dc\uac04\uc774 \uc9c0\ub09c \ud6c4(\ub610\ub294 \uc774\uc804)\uc5d0 \ud3c9\ud589 \uc6b0\uc8fc\uc758 \ub2e4\ub978 \uad6c\uba4d\uc5d0\uc11c \ub098\uc624\uac8c \ub41c\ub2e4.&nbsp;<\/p>\r\n\r\n<p>\ubb18\uc9c0\ub294 W &times; H \ud06c\uae30\uc758 \uadf8\ub9ac\ub4dc\ub85c \ub098\ud0c0\ub0bc \uc218 \uc788\ub2e4. \ubb18\uc9c0\uc758 \uc785\uad6c\ub294 (0, 0)\uc774\uace0, \ucd9c\uad6c\ub294 (W-1, H-1)\uc774\ub2e4. \uc0c1\uadfc\uc774\ub294 \uac81\uc774 \ub9ce\uae30 \ub54c\ubb38\uc5d0, \ucd5c\ub300\ud55c \ube68\ub9ac \ubb18\uc9c0\ub97c \ub098\uac00\ub824\uace0 \ud55c\ub2e4. \uadf8\ub9ac\uace0 \uc0c1\uadfc\uc774\ub294 \uc774\ub3d9\ud558\ub358 \ub3c4\uc911 \ucd9c\uad6c\uc5d0 \ub3c4\ub2ec\ud558\uba74 \ub4a4\ub3c4 \ub3cc\uc544\ubcf4\uc9c0 \uc54a\uace0 \uadf8 \uc989\uc2dc \ubb18\uc9c0\ub97c \ube60\uc838\ub098\uac08 \uc0dd\uac01\uc774\ub2e4. \uc0c1\uadfc\uc774\ub294 \ud604\uc7ac \uc788\ub294 \uce78\uacfc \ub3d9, \uc11c, \ub0a8, \ubd81\uc73c\ub85c \uc778\uc811\ud55c \uce78\uc73c\ub85c \uc774\ub3d9\ud560 \uc218 \uc788\ub2e4. \uac01 \uce78\uc740 \uc794\ub514, \ubb18\ube44, \ub610\ub294 \uadc0\uc2e0 \uad6c\uba4d\uc774\ub2e4.<\/p>\r\n\r\n<ul>\r\n\t<li>\ubb18\ube44\ub294 \ub9e4\uc6b0 \ub192\uae30 \ub54c\ubb38\uc5d0, \ubb18\ube44\uac00 \uc788\ub294 \uce78\uc73c\ub85c\ub294 \uc774\ub3d9\ud560 \uc218 \uc5c6\ub2e4.<\/li>\r\n\t<li>\uadc0\uc2e0 \uad6c\uba4d\uc774 \uc788\ub294 \uce78\uc73c\ub85c \uc774\ub3d9\ud558\uba74, \ud2b9\uc815 \uc2dc\uac04\uc774 \uc9c0\ub09c \ud6c4\uc5d0 \ubb18\uc9c0\uc758 \ub2e4\ub978 \uacf3\uc5d0\uc11c \uc0c1\uadfc\uc774\uac00 \ub098\ud0c0\ub098\uac8c \ub41c\ub2e4. \uc2dc\uac04\uc740 \uadc0\uc2e0 \uad6c\uba4d\ub9c8\ub2e4 \ub2e4\ub974\uba70, \uc591\uc218, \uc74c\uc218, 0 \uc911 \ud558\ub098\uc774\ub2e4.<\/li>\r\n\t<li>\uc794\ub514\uac00 \uc788\ub294 \uce78\uc73c\ub85c\ub294 \uc790\uc720\ub86d\uac8c \uc774\ub3d9\ud560 \uc218 \uc788\ub2e4.<\/li>\r\n<\/ul>\r\n\r\n<p>\uc0c1\uadfc\uc774\ub294 \ubb18\uc9c0\ub97c \ube68\ub9ac \ub098\uac00\uae30 \uc704\ud574 \uadc0\uc2e0 \uad6c\uba4d\ub3c4 \uc774\uc6a9\ud560 \uac83\uc774\ub2e4. \ubb18\uc9c0\ub97c \ub098\uac08 \uc218 \uc5c6\ub294 \uacbd\uc6b0\ub098, \uacc4\uc18d\ud574\uc11c \uacfc\uac70\ub85c \uc774\ub3d9\ud558\ub294 \uacbd\uc6b0\uac00 \uc874\uc7ac\ud560 \uc218\ub3c4 \uc788\ub2e4.<\/p>\r\n\r\n<p style=\"text-align: center;\"><img alt=\"\" src=\"\/upload\/images\/grave.png\" style=\"height:271px; width:342px\" \/><\/p>\r\n\r\n<p>\ubb18\uc9c0\uac00 \uc704\uc640 \uac19\uc774 \uc0dd\uae34 \uacbd\uc6b0(\ubb38\uc81c\uc758 \ub450 \ubc88\uc9f8 \uc608\uc81c)\ub97c \uc0b4\ud3b4\ubcf4\uc790. \ubb18\ube44\ub294 (2,1)\uc640 (3,1)\uc5d0 \uc788\uace0, \uadc0\uc2e0 \uad6c\uba4d\uc740 0\ucd08\ub9cc\uc5d0 (3,0)\ub85c \ub4e4\uc5b4\uac00\uc11c (2,2)\uc5d0\uc11c \ub098\uc624\ub294 \uad6c\uba4d \ud558\ub098\uac00 \uc788\ub2e4. \ubb18\uc9c0\ub97c \ube60\uc838\ub098\uc624\ub294\ub370 \uac78\ub9ac\ub294 \uac00\uc7a5 \ube60\ub978 \uc2dc\uac04\uc740 4\ucd08\uc774\uba70, \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\r\n\r\n<p>(0,0) -&gt; \ub3d9(1\ucd08) (1,0) -&gt; \ub3d9(1\ucd08) (2,0) -&gt; \ub3d9(1\ucd08) (3,0) -&gt; \uadc0\uc2e0\uad6c\uba4d(0\ucd08) (2,2) -&gt; \ub3d9(1\ucd08) (3,2)<\/p>\r\n\r\n<p>\uadc0\uc2e0 \uad6c\uba4d\uc744 \uc774\uc6a9\ud558\uc9c0 \uc54a\ub294\ub2e4\uba74 \uac00\uc7a5 \ube60\ub978 \uc2dc\uac04\uc740 5\ucd08\uc774\ub2e4.<\/p>\r\n","input":"<p>\uc785\ub825\uc740 \uc5ec\ub7ec \uac1c\uc758 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\ub2e4.<\/p>\r\n\r\n<p>\uac01 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4\uc758 \uccab\uc9f8 \uc904\uc5d0\ub294 \ubb18\uc9c0\uc758 \ub108\ube44 W\uc640 \ub192\uc774 H\uac00 \uc8fc\uc5b4\uc9c4\ub2e4. (1 &le; W, H &le; 30) \ub2e4\uc74c \uc904\uc5d0\ub294 \ubb18\ube44\uc758 \uac1c\uc218 G (G &ge; 0)\uac00 \uc8fc\uc5b4\uc9c4\ub2e4. \ub2e4\uc74c G\uac1c \uc904\uc5d0\ub294 \ubb18\ube44\uc758 \uc704\uce58\ub97c \ub098\ud0c0\ub0b4\ub294 \ub450 \uc815\uc218 X\uc640 Y\uac00 \uc8fc\uc5b4\uc9c4\ub2e4. (0 &le; X &lt; W, 0 &le; Y &lt; H)<\/p>\r\n\r\n<p>\ub2e4\uc74c \uc904\uc5d0\ub294 \uadc0\uc2e0 \uad6c\uba4d\uc758 \uc218 E (E &ge; 0)\uac00 \uc8fc\uc5b4\uc9c4\ub2e4. \ub2e4\uc74c E\uac1c \uc904\uc5d0\ub294 \uadc0\uc2e0 \uad6c\uba4d\uc758 \uc815\ubcf4\ub97c \ub098\ud0c0\ub0b4\ub294 X1, Y1, X2, Y2, T \uac00 \uc8fc\uc5b4\uc9c4\ub2e4. (X1, Y1)\uc740 \uadc0\uc2e0 \uad6c\uba4d\uc758 \uc704\uce58\uc774\uace0, (X2, Y2)\ub294 \uadf8 \uadc0\uc2e0 \uad6c\uba4d\uc73c\ub85c \ub4e4\uc5b4\uac14\uc744 \ub54c, \ub098\uc624\ub294 \uacf3\uc758 \uc704\uce58\uc774\ub2e4. (0 &le; X1, X2 &lt; W, 0 &le; Y1, Y2 &lt; H) (X1,Y1)\uacfc (X2,Y2)\uac00 \uac19\uc744 \uc218\ub3c4 \uc788\ub2e4. T\ub294 \uadc0\uc2e0 \uad6c\uba4d\uc5d0\uc11c \ub098\uc624\ub294\ub370 \uac78\ub9ac\ub294 \uc2dc\uac04\uc774\ub2e4. (-10,000 &le; T &le; 10,000) T\uac00 \uc591\uc218\uc778 \uacbd\uc6b0\uc5d0\ub294 \uadc0\uc2e0 \uad6c\uba4d\uc744 \ub4e4\uc5b4\uac04 \uc774\ud6c4\uc5d0 \ub098\uc628\ub2e4\ub294 \uc758\ubbf8\uc774\ub2e4. \ub450 \uadc0\uc2e0 \uad6c\uba4d\uc774 \uac19\uc740 \uc7a5\uc18c\uc5d0 \uc788\uac70\ub098, \uad6c\uba4d\uc5d0\uc11c \ub098\uc624\ub294 \uc9c0\uc810\uc774 \ubb18\ube44\uc778 \uacbd\uc6b0\ub294 \uc5c6\ub2e4. \ubb18\ube44\uc640 \uadc0\uc2e0 \uad6c\uba4d\uc774 (0, 0)\uc774\ub098 (W-1, H-1)\uc5d0 \uc788\ub294 \uacbd\uc6b0\ub294 \uc5c6\ub2e4.<\/p>\r\n\r\n<p>\uc785\ub825\uc758 \ub9c8\uc9c0\ub9c9 \uc904\uc5d0\ub294 0 0\uc774 \uc8fc\uc5b4\uc9c4\ub2e4.<\/p>\r\n","output":"<p>\uac01 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4 \ub9c8\ub2e4 \uc0c1\uadfc\uc774\uac00 \uacfc\uac70\ub85c \uacc4\uc18d\ud574\uc11c \ub3cc\uc544\uac04\ub2e4\uba74 &quot;Never&quot;\ub97c \ucd9c\ub825\ud558\uace0, \ucd9c\uad6c\ub97c \ube60\uc838\ub098\uc62c \uc218 \uc5c6\uc73c\uba74 &quot;Impossible&quot;\uc744 \ucd9c\ub825\ud55c\ub2e4. \uadf8 \uc678\uc758 \uacbd\uc6b0\uc5d0\ub294 \ubb18\uc9c0\ub97c \ube60\uc838\ub098\uc624\ub294\ub370 \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":"3860","problem_lang":"1","title":"Haunted Graveyard","description":"<p>Tonight is Halloween and Scared John and his friends have decided to do something fun to celebrate the occasion: crossing the graveyard. Although Scared John does not find this fun at all, he finally agreed to join them in their adventure. Once at the entrance, the friends have begun to cross the graveyard one by one, and now it is the time for Scared John. He still remembers the tales his grandmother told him when he was a child. She told him that, on Halloween night, &quot;haunted holes&quot; appear in the graveyard. These are not usual holes, but they transport people who fall inside to some point in the graveyard, possibly far away. But the scariest feature of these holes is that they allow one to travel in time as well as in space; i.e., if you fall inside a &quot;haunted hole&quot;, you appear somewhere in the graveyard a certain time before (or after) you entered the hole, in a parallel universe otherwise identical to ours.<\/p>\r\n\r\n<p>The graveyard is organised as a grid of W &times; H cells, with the entrance in the cell at position (0,0) and the exit at (W-1, H-1). &nbsp;Despite the darkness, Scared John can always recognize the exit, and he will leave as soon as he reaches it, determined never to set foot anywhere in the graveyard again. On his way to the exit, he can walk from one cell to an adjacent one, and he can only head to the North, East, South or West. In each cell there can be either one gravestone, one &quot;haunted hole&quot;, or grass:<\/p>\r\n\r\n<ul>\r\n\t<li>If the cell contains a gravestone, you cannot walk over it, because gravestones are too high to climb.<\/li>\r\n\t<li>If the cell contains a &quot;haunted hole&quot; and you walk over it, you will appear somewhere in the graveyard at a possibly different moment in time. The time difference depends on the particular &quot;haunted hole&quot; you fell into, and can be positive, negative or zero.<\/li>\r\n\t<li>Otherwise, the cell has only grass, and you can walk freely over it.<\/li>\r\n<\/ul>\r\n\r\n<p>He is terriffied, so he wants to cross the graveyard as quickly as possible. And that is the reason why he has phoned you, a renowned programmer. He wants you to write a program that, given the description of the graveyard, computes the minimum time needed to go from the entrance to the exit. Scared John accepts using &quot;haunted holes&quot; if they permit him to cross the graveyard quicker, but he is frightened to death of the possibility of getting lost and being able to travel back in time indefinitely using the holes, so your program must report these situations.<\/p>\r\n\r\n<p><img alt=\"\" src=\"\/upload\/images\/grave.png\" style=\"height:271px; width:342px\" \/><\/p>\r\n\r\n<p>Figure 3: Sample graveyard<\/p>\r\n\r\n<p>Figure 3 illustrates a possible graveyard (the second test case from the sample input). In this case there are two gravestones in cells (2,1) and (3,1), and a &quot;haunted hole&quot; from cell (3,0) to cell (2,2) with a difference in time of 0 seconds. The minimum time to cross the graveyard is 4 seconds, corresponding to the path:<\/p>\r\n\r\n<p>(0,0) &rarr; East 1 sec (1,0) &rarr; East 1 sec (2,0) &rarr; East 1 sec (3,0) &rarr; hole 0 sec (2,2) &rarr; East 1 sec (3,2)<\/p>\r\n\r\n<p>If you do not use the &quot;haunted hole&quot;, you need at least 5 seconds.<\/p>\r\n","input":"<p>The input consists of several test cases. Each test case begins with a line containing two integers W and H (1 &le; W,H &le; 30). These integers represent the width W and height H of the graveyard. The next line contains an integer G (G &ge; 0), the number of gravestones in the graveyard, and is followed by G lines containing the positions of the gravestones. Each position is given by two integers X and Y (0 &le; X &lt; W and 0 &le; Y &lt; H).<\/p>\r\n\r\n<p>The next line contains an integer E (E &ge; 0), the number of &quot;haunted holes&quot;, and is followed by E lines. Each of these contains five integers X1, Y1, X2, Y2, T. (X1,Y1) is the position of the &quot;haunted hole&quot; (0 &le; X1 &lt; W and 0 &le; Y1 &lt; H). (X2,Y2) is the destination of the &quot;haunted hole&quot; (0 &le; X2 &lt; W and 0 &le; Y2 &lt; H). Note that the original and the destination of a &quot;haunted hole&quot; can be identical. T (-10 000 &le; T &le; 10 000) is the difference in seconds between the moment somebody enters the &quot;haunted hole&quot; and the moment he appears in the destination position; a positive number indicates that he reaches the destination after entering the hole. You can safely assume that there are no two &quot;haunted holes&quot; with the same origin, and the destination cell of a &quot;haunted hole&quot; does not contain a gravestone. Furthermore, there are neither gravestones nor &quot;haunted holes&quot; at position (0,0) and (W-1,H-1).<\/p>\r\n\r\n<p>The input will finish with a lines containing 0 0, which should not be processed.<\/p>\r\n","output":"<p>For each test case, if it is possible for Scared John to travel back in time indefinitely, output Never. Otherwise, print the minimum time in seconds that it takes him to cross the graveyard from the entrance to the exit if it is reachable, and Impossible if not.<\/p>\r\n","hint":"","original":"1","problem_lang_code":"\uc601\uc5b4"}]

출처

ICPC > Regionals > Europe > Southwestern European Regional Contest > SWERC 2009 F번

  • 문제를 번역한 사람: baekjoon
  • 잘못된 번역을 찾은 사람: heiler