시간 제한 메모리 제한 제출 정답 맞은 사람 정답 비율
2 초 128 MB 130 21 16 23.881%

문제

월드 캠프가 계속될수록, 씻지 않아 냄새를 풍기는 사람들이 늘어 가고 있다. 이에 따라 당신은 교실에서 한 지점에서 다른 지점으로 이동할 일이 생겼을 때, 냄새나는 사람들이 앉아 있는 자리로부터 최대한 멀리 떨어진 경로를 따라 걸어가고 싶어졌다. 이를 해결하는 프로그램을 작성하라.

교실은 좌표 평면으로 표현된다. 친구들이 앉아 있는 좌표 (x,y), 시작지점과 목적지점의 좌표 (sx,sy), (tx,ty)는 교실의 가로 세로 크기 Wx, Wy에 대해 1≤x, sx, tx≤Wx, 1≤y, sy, ty≤Wy를 만족한다. Wx, Wy는 2≤Wx, Wy≤1,000를 만족한다. 냄새나는 사람들의 수 n은 1≤n≤Wx*Wy- 2 를 만족한다.

좌표 평면에서 x축 혹은 y축에 평행하게 (가로 혹은 세로 방향으로) 1만큼씩 움직여, 시작지점에서 목적지점까지 이동하며 거친 점들의 자취를 하나의 경로라고 한다. 단, 점들의 좌표는 항상 양의 정수를 유지해야 한다. 냄새나는 사람들과 어떤 경로와의 거리는, 경로 위의 임의의 점과, 임의의 냄새나는 사람들이 앉아 있는 점들 사이의 거리 중 가장 짧은 것으로 정의된다. 가능한 경로 중, 냄새나는 사람들과의 거리가 가장 먼 경로를 최적의 경로라고 할 수 있다.

여러분이 할 일은, 시작지점과 목적지점, 냄새나는 사람들이 앉아 있는 위치가 주어졌을 때, 최적의 경로를 따라 이동할 경우, 냄새나는 사람들과 경로와의 거리가 얼마인지 구하는 것이다.

입력

첫 줄에 교실의 크기를 나타내는 두 정수 Wx, Wy가 주어진다. 둘째 줄에는 시작지점과 목적지점의 좌표를 나타내는 네 정수 sx, sy, tx, ty가 주어진다. 셋째 줄에는 냄새나는 사람들의 수 n이 주어진다. 넷째 줄부터는 한 줄에 하나씩 냄새나는 사람들이 앉아있는 곳의 좌표 xi, yi가 주어진다. 시작지점과 도착지점에는 냄새나는 사람들이 앉아있지 않다.

출력

최적의 경로로 이동할 때, 냄새나는 사람들과 경로와의 거리가 얼마인지를 구해서, 첫 줄에 그 제곱값을 출력한다. 무슨 수를 쓰더라도 냄새나는 사람들이 있는 위치를 피해갈 수 없을 경우, 출력값은 0이 된다.

예제 입력 1

5 5
1 1 5 5
2
3 3
4 2

예제 출력 1

4

힌트

[{"problem_id":"1909","problem_lang":"0","title":"\ub0c4\uc0c8 \uc2eb\uc5b4","description":"<p>\uc6d4\ub4dc \ucea0\ud504\uac00 \uacc4\uc18d\ub420\uc218\ub85d, \uc53b\uc9c0 \uc54a\uc544 \ub0c4\uc0c8\ub97c \ud48d\uae30\ub294 \uc0ac\ub78c\ub4e4\uc774 \ub298\uc5b4 \uac00\uace0 \uc788\ub2e4. \uc774\uc5d0 \ub530\ub77c \ub2f9\uc2e0\uc740 \uad50\uc2e4\uc5d0\uc11c \ud55c \uc9c0\uc810\uc5d0\uc11c \ub2e4\ub978 \uc9c0\uc810\uc73c\ub85c \uc774\ub3d9\ud560 \uc77c\uc774 \uc0dd\uacbc\uc744 \ub54c, \ub0c4\uc0c8\ub098\ub294 \uc0ac\ub78c\ub4e4\uc774 \uc549\uc544 \uc788\ub294 \uc790\ub9ac\ub85c\ubd80\ud130 \ucd5c\ub300\ud55c \uba40\ub9ac \ub5a8\uc5b4\uc9c4 \uacbd\ub85c\ub97c \ub530\ub77c \uac78\uc5b4\uac00\uace0 \uc2f6\uc5b4\uc84c\ub2e4. \uc774\ub97c \ud574\uacb0\ud558\ub294 \ud504\ub85c\uadf8\ub7a8\uc744 \uc791\uc131\ud558\ub77c.<\/p>\r\n\r\n<p>\uad50\uc2e4\uc740 \uc88c\ud45c \ud3c9\uba74\uc73c\ub85c \ud45c\ud604\ub41c\ub2e4. \uce5c\uad6c\ub4e4\uc774 \uc549\uc544 \uc788\ub294 \uc88c\ud45c (x,y), \uc2dc\uc791\uc9c0\uc810\uacfc \ubaa9\uc801\uc9c0\uc810\uc758 \uc88c\ud45c (sx,sy), (tx,ty)\ub294 \uad50\uc2e4\uc758 \uac00\ub85c \uc138\ub85c \ud06c\uae30 Wx, Wy\uc5d0 \ub300\ud574 1&le;x, sx, tx&le;Wx, 1&le;y, sy, ty&le;Wy\ub97c \ub9cc\uc871\ud55c\ub2e4. Wx, Wy\ub294 2&le;Wx, Wy&le;1,000\ub97c \ub9cc\uc871\ud55c\ub2e4. \ub0c4\uc0c8\ub098\ub294 \uc0ac\ub78c\ub4e4\uc758 \uc218 n\uc740 1&le;n&le;Wx*Wy- 2 \ub97c \ub9cc\uc871\ud55c\ub2e4.<\/p>\r\n\r\n<p>\uc88c\ud45c \ud3c9\uba74\uc5d0\uc11c x\ucd95 \ud639\uc740 y\ucd95\uc5d0 \ud3c9\ud589\ud558\uac8c (\uac00\ub85c \ud639\uc740 \uc138\ub85c \ubc29\ud5a5\uc73c\ub85c) 1\ub9cc\ud07c\uc529 \uc6c0\uc9c1\uc5ec, \uc2dc\uc791\uc9c0\uc810\uc5d0\uc11c \ubaa9\uc801\uc9c0\uc810\uae4c\uc9c0 \uc774\ub3d9\ud558\uba70 \uac70\uce5c \uc810\ub4e4\uc758 \uc790\ucde8\ub97c \ud558\ub098\uc758 \uacbd\ub85c\ub77c\uace0 \ud55c\ub2e4. \ub2e8, \uc810\ub4e4\uc758 \uc88c\ud45c\ub294 \ud56d\uc0c1 \uc591\uc758 \uc815\uc218\ub97c \uc720\uc9c0\ud574\uc57c \ud55c\ub2e4. \ub0c4\uc0c8\ub098\ub294 \uc0ac\ub78c\ub4e4\uacfc \uc5b4\ub5a4 \uacbd\ub85c\uc640\uc758 \uac70\ub9ac\ub294, \uacbd\ub85c \uc704\uc758 \uc784\uc758\uc758 \uc810\uacfc, \uc784\uc758\uc758 \ub0c4\uc0c8\ub098\ub294 \uc0ac\ub78c\ub4e4\uc774 \uc549\uc544 \uc788\ub294 \uc810\ub4e4 \uc0ac\uc774\uc758 \uac70\ub9ac \uc911 \uac00\uc7a5 \uc9e7\uc740 \uac83\uc73c\ub85c \uc815\uc758\ub41c\ub2e4. \uac00\ub2a5\ud55c \uacbd\ub85c \uc911, \ub0c4\uc0c8\ub098\ub294 \uc0ac\ub78c\ub4e4\uacfc\uc758 \uac70\ub9ac\uac00 \uac00\uc7a5 \uba3c \uacbd\ub85c\ub97c \ucd5c\uc801\uc758 \uacbd\ub85c\ub77c\uace0 \ud560 \uc218 \uc788\ub2e4.<\/p>\r\n\r\n<p>\uc5ec\ub7ec\ubd84\uc774 \ud560 \uc77c\uc740, \uc2dc\uc791\uc9c0\uc810\uacfc \ubaa9\uc801\uc9c0\uc810, \ub0c4\uc0c8\ub098\ub294 \uc0ac\ub78c\ub4e4\uc774 \uc549\uc544 \uc788\ub294 \uc704\uce58\uac00 \uc8fc\uc5b4\uc84c\uc744 \ub54c, \ucd5c\uc801\uc758 \uacbd\ub85c\ub97c \ub530\ub77c \uc774\ub3d9\ud560 \uacbd\uc6b0, \ub0c4\uc0c8\ub098\ub294 \uc0ac\ub78c\ub4e4\uacfc \uacbd\ub85c\uc640\uc758 \uac70\ub9ac\uac00 \uc5bc\ub9c8\uc778\uc9c0 \uad6c\ud558\ub294 \uac83\uc774\ub2e4.<\/p>\r\n","input":"<p>\uccab \uc904\uc5d0 \uad50\uc2e4\uc758 \ud06c\uae30\ub97c \ub098\ud0c0\ub0b4\ub294 \ub450 \uc815\uc218 Wx, Wy\uac00 \uc8fc\uc5b4\uc9c4\ub2e4. \ub458\uc9f8 \uc904\uc5d0\ub294 \uc2dc\uc791\uc9c0\uc810\uacfc \ubaa9\uc801\uc9c0\uc810\uc758 \uc88c\ud45c\ub97c \ub098\ud0c0\ub0b4\ub294 \ub124 \uc815\uc218 sx, sy, tx, ty\uac00 \uc8fc\uc5b4\uc9c4\ub2e4. \uc14b\uc9f8 \uc904\uc5d0\ub294 \ub0c4\uc0c8\ub098\ub294 \uc0ac\ub78c\ub4e4\uc758 \uc218 n\uc774 \uc8fc\uc5b4\uc9c4\ub2e4. \ub137\uc9f8 \uc904\ubd80\ud130\ub294 \ud55c \uc904\uc5d0 \ud558\ub098\uc529 \ub0c4\uc0c8\ub098\ub294 \uc0ac\ub78c\ub4e4\uc774 \uc549\uc544\uc788\ub294 \uacf3\uc758 \uc88c\ud45c xi, yi\uac00 \uc8fc\uc5b4\uc9c4\ub2e4. \uc2dc\uc791\uc9c0\uc810\uacfc \ub3c4\ucc29\uc9c0\uc810\uc5d0\ub294 \ub0c4\uc0c8\ub098\ub294 \uc0ac\ub78c\ub4e4\uc774 \uc549\uc544\uc788\uc9c0 \uc54a\ub2e4.<\/p>\r\n","output":"<p>\ucd5c\uc801\uc758 \uacbd\ub85c\ub85c \uc774\ub3d9\ud560 \ub54c, \ub0c4\uc0c8\ub098\ub294 \uc0ac\ub78c\ub4e4\uacfc \uacbd\ub85c\uc640\uc758 \uac70\ub9ac\uac00 \uc5bc\ub9c8\uc778\uc9c0\ub97c \uad6c\ud574\uc11c, \uccab \uc904\uc5d0 \uadf8 \uc81c\uacf1\uac12\uc744 \ucd9c\ub825\ud55c\ub2e4. \ubb34\uc2a8 \uc218\ub97c \uc4f0\ub354\ub77c\ub3c4 \ub0c4\uc0c8\ub098\ub294 \uc0ac\ub78c\ub4e4\uc774 \uc788\ub294 \uc704\uce58\ub97c \ud53c\ud574\uac08 \uc218 \uc5c6\uc744 \uacbd\uc6b0, \ucd9c\ub825\uac12\uc740 0\uc774 \ub41c\ub2e4.<\/p>\r\n","hint":"<p><img alt=\"\" height=\"237\" src=\"\/JudgeOnline\/upload\/201007\/11.png\" width=\"262\" \/><\/p>\r\n","original":"0","problem_lang_code":"\ud55c\uad6d\uc5b4"},{"problem_id":"1909","problem_lang":"1","title":"Frogs","description":"<p>A scourge of frogs destroying all the crop has started in Byteotia. A farmer named Byteasar has decided to fight the vermin with peculiar &quot;scarefrogs&quot;, that he has set up at certain points of his field. While moving from one place to another, every frog tries to keep as far of them as possible, i.e. maximizes the distance to the closest scarefrog.<\/p>\r\n\r\n<p>The field that belongs to Byteasar has rectangular shape. The frogs leap in directions parallel to the field&#39;s sides and their leaps are unitary (of length ). The scarefrogs-distance, for a given frog&#39;s route, is the minimum of all distances from all scarefrogs at all inter-leap-points of the route.<\/p>\r\n\r\n<p>Byteasar already knows the most common starting and destination points of the frogs&#39; routes, therefore he experiments with various deployments of the scarefrogs. He asks you for help, namely he would like you to write a programme that calculates the maximum (over all routes) scarefrogs-distance for a given deployment of scarefrogs - which we call in short the frogshold distance.<\/p>\r\n\r\n<p>Write a programme that:<\/p>\r\n\r\n<ul>\r\n\t<li>reads from the standard input the size of the field, the coordinates of the screfrogs and the source and target position of a frog,<\/li>\r\n\t<li>determines the frogshold distance (the maximum scarefrogs-distance a frog may achieve while still being able to reach the target point)<\/li>\r\n\t<li>writes the square of this number to the standard output.<\/li>\r\n<\/ul>\r\n","input":"<p>The first line of the input contains two integers: w<sub>x<\/sub> and w<sub>y<\/sub> separated by a single space - the breadth and length of the field (2 &le; w<sub>x<\/sub>, w<sub>y<\/sub> &le; 1 000). The second line of the input contains four integers: p<sub>x<\/sub>, p<sub>y<\/sub>, k<sub>x<\/sub> and k<sub>y<\/sub> separated by single spaces; (p<sub>x<\/sub>, p<sub>y<\/sub>) is the initial position of the frog, (k<sub>x<\/sub>, k<sub>y<\/sub>) is the target (final) position of the frog (1 &le; p<sub>x<\/sub>, k<sub>x<\/sub> &le; w<sub>x<\/sub>, 1 &le; p<sub>y<\/sub>, k<sub>y<\/sub> &le; w<sub>y<\/sub>). The third line of the standard input contains one integer n - the number of scarefrogs deployed on the field (1 &le; n &le; w<sub>x<\/sub>&middot;w<sub>y<\/sub>). The following n lines contain the coordinates of subsequent scarefrogs. The line no. i+3 for 1 &le; i &le; n contains two integers x<sub>i<\/sub> and y<sub>i<\/sub> separated by a single space - these are the coordinates of the ith scarefrog (1 &le; x<sub>i<\/sub> &le; w<sub>x<\/sub>, 1 &le; y<sub>i<\/sub> &le; w<sub>y<\/sub>). No two scarefrogs occupy the same position and none of them is at the point (p<sub>x<\/sub>, p<sub>y<\/sub>) nor (k<sub>x<\/sub>, k<sub>y<\/sub>)<\/p>\r\n","output":"<p>In the first and only line of the standard output one integer should be written, namely the square of the frogshold distance. If the frog cannot avoid leaping directly on some scarefrog the result is 0.<\/p>\r\n","hint":"<p><img alt=\"\" src=\"\/upload\/images\/zabzad-en.png\" style=\"height:277px; width:250px\" \/><\/p>\r\n","original":"1","problem_lang_code":"\uc601\uc5b4"}]

출처

Olympiad > Polish Olympiad in Informatics > POI 2005/2006 > Stage 1 5번

  • 문제의 오타를 찾은 사람: adh0463
  • 문제를 번역한 사람: author6