시간 제한 메모리 제한 제출 정답 맞은 사람 정답 비율
5 초 128 MB 201 37 31 18.675%

문제

상근이가 사는 동네에는 커피 전문점이 매우 많이 있다. 5년 전에는 커피 전문점이 1개밖에 없었지만, 그 사이에 벌써 20개나 생겼다. 사람들은 점점 커피에 중독되고, 커피를 마시기 위해 커피 전문점에 가기 때문에 커피 전문점은 계속 수가 늘어난다.

상근이는 근처에 커피 전문점이 많은 곳으로 이사가려고 부동산에 방문했다. 부동산에 있는 지도에는 모든 커피 전문점의 위치가 표시되어 있다. 상근이는 모닝 커피를 마시기 위해 m블록만큼 걸어 나갈 수 있다. 이때, m블록 내에 가장 많은 커피 전문점이 있는 곳의 위치를 구하는 프로그램을 작성하시오.

상근이네 동네는 정사각형 격자 모양이고, 모든 블록은 북-남, 동-서 축에 정렬되어져 있다. 사거리 (a,b)와 (c,d) 사이의 거리는 |a-c| + |b-d| 이다. 

입력

입력은 여러 개의 테스트 케이스로 이루어져 있다. 각 테스트 케이스는 도시를 나타낸다.

테스트 케이스의 첫 째 줄에는 dx, dy, n, q가 주어진다. 도시의 크기는 dx × dy (1 ≤ dx, dy ≤ 1000)이고, 이 도시에 있는 커피 전문점의 수는 n (0 ≤ n ≤ 5·105), 쿼리의 수는 q (1 ≤ q ≤ 20) 이다.

다음 n개 줄에는 두 정수 xi와 yi (1 ≤ xi ≤ dx, 1 ≤ yi ≤ dy) 가 주어진다. 두 정수는 i번째 커피 전문점의 위치를 나타낸다. 한 사거리에 있는 커피 전문점의 수는 최대 1개이다.

다음 q개 줄에는 정수 m이 한 줄에 하나씩 주어진다. m (0 ≤ m ≤ 106)은 상근이가 모닝 커피를 사러 걸어나갈 수 있는 블록의 최대 개수이다.

마지막 테스트 케이스의 다음 줄에는 0이 네 개 주어진다.

출력

각 테스트 케이스 마다 테스트 케이스 번호를 출력한다. 그 다음, 한 쿼리당 한 줄씩 정답을 출력한다. 입력으로 주어진 각 쿼리 m마다, m블록 내에 가장 많은 커피 전문점이 있는 곳의 위치를 출력한다. 

예를 들어, 예제 출력은 (3,4)에서 1블록 내에 커피 전문점이 3개, (2,2)에서 2블록 내에 커피 전문점이 4개, (3,1)에서 4블록 내에 커피 전문점이 5개 있다는 뜻이다.

만약, 가능한 위치가 여러개라면, 가장 남쪽에 있는 위치 (y좌표가 작은 것)을 출력한다. 그래도 여러개인 경우에는 가장 서쪽에 있는 위치 (x좌표가 작은 것)을 출력한다.

예제 출력 형식을 참고한다.

예제 입력 1

4 4 5 3
1 1
1 2
3 3
4 4
2 4
1
2
4
0 0 0 0

예제 출력 1

Case 1:
3 (3,4)
4 (2,2)
5 (3,1)
[{"problem_id":"4219","problem_lang":"0","title":"\ucee4\ud53c \uc804\ubb38\uc810","description":"<p>\uc0c1\uadfc\uc774\uac00 \uc0ac\ub294 \ub3d9\ub124\uc5d0\ub294 \ucee4\ud53c \uc804\ubb38\uc810\uc774 \ub9e4\uc6b0 \ub9ce\uc774 \uc788\ub2e4. 5\ub144 \uc804\uc5d0\ub294 \ucee4\ud53c \uc804\ubb38\uc810\uc774 1\uac1c\ubc16\uc5d0 \uc5c6\uc5c8\uc9c0\ub9cc, \uadf8 \uc0ac\uc774\uc5d0 \ubc8c\uc368 20\uac1c\ub098 \uc0dd\uacbc\ub2e4. \uc0ac\ub78c\ub4e4\uc740 \uc810\uc810 \ucee4\ud53c\uc5d0 \uc911\ub3c5\ub418\uace0, \ucee4\ud53c\ub97c \ub9c8\uc2dc\uae30 \uc704\ud574 \ucee4\ud53c \uc804\ubb38\uc810\uc5d0 \uac00\uae30 \ub54c\ubb38\uc5d0 \ucee4\ud53c \uc804\ubb38\uc810\uc740 \uacc4\uc18d \uc218\uac00 \ub298\uc5b4\ub09c\ub2e4.<\/p>\r\n\r\n<p>\uc0c1\uadfc\uc774\ub294 \uadfc\ucc98\uc5d0 \ucee4\ud53c \uc804\ubb38\uc810\uc774 \ub9ce\uc740 \uacf3\uc73c\ub85c \uc774\uc0ac\uac00\ub824\uace0 \ubd80\ub3d9\uc0b0\uc5d0 \ubc29\ubb38\ud588\ub2e4. \ubd80\ub3d9\uc0b0\uc5d0 \uc788\ub294 \uc9c0\ub3c4\uc5d0\ub294 \ubaa8\ub4e0 \ucee4\ud53c \uc804\ubb38\uc810\uc758 \uc704\uce58\uac00 \ud45c\uc2dc\ub418\uc5b4 \uc788\ub2e4. \uc0c1\uadfc\uc774\ub294 \ubaa8\ub2dd \ucee4\ud53c\ub97c \ub9c8\uc2dc\uae30 \uc704\ud574 m\ube14\ub85d\ub9cc\ud07c \uac78\uc5b4 \ub098\uac08 \uc218 \uc788\ub2e4. \uc774\ub54c, m\ube14\ub85d \ub0b4\uc5d0 \uac00\uc7a5 \ub9ce\uc740 \ucee4\ud53c \uc804\ubb38\uc810\uc774 \uc788\ub294 \uacf3\uc758 \uc704\uce58\ub97c \uad6c\ud558\ub294 \ud504\ub85c\uadf8\ub7a8\uc744 \uc791\uc131\ud558\uc2dc\uc624.<\/p>\r\n\r\n<p>\uc0c1\uadfc\uc774\ub124 \ub3d9\ub124\ub294 \uc815\uc0ac\uac01\ud615 \uaca9\uc790 \ubaa8\uc591\uc774\uace0, \ubaa8\ub4e0 \ube14\ub85d\uc740 \ubd81-\ub0a8, \ub3d9-\uc11c \ucd95\uc5d0 \uc815\ub82c\ub418\uc5b4\uc838 \uc788\ub2e4. \uc0ac\uac70\ub9ac (a,b)\uc640 (c,d) \uc0ac\uc774\uc758 \uac70\ub9ac\ub294 |a-c| + |b-d| \uc774\ub2e4.&nbsp;<\/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. \uac01 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4\ub294 \ub3c4\uc2dc\ub97c \ub098\ud0c0\ub0b8\ub2e4.<\/p>\r\n\r\n<p>\ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4\uc758 \uccab \uc9f8 \uc904\uc5d0\ub294 dx, dy, n, q\uac00 \uc8fc\uc5b4\uc9c4\ub2e4. \ub3c4\uc2dc\uc758 \ud06c\uae30\ub294 dx &times; dy (1 &le; dx, dy &le; 1000)\uc774\uace0, \uc774 \ub3c4\uc2dc\uc5d0 \uc788\ub294 \ucee4\ud53c \uc804\ubb38\uc810\uc758 \uc218\ub294 n (0 &le; n &le; 5&middot;10<sup>5<\/sup>), \ucffc\ub9ac\uc758 \uc218\ub294 q (1 &le; q &le; 20) \uc774\ub2e4.<\/p>\r\n\r\n<p>\ub2e4\uc74c n\uac1c \uc904\uc5d0\ub294 \ub450 \uc815\uc218 x<sub>i<\/sub>\uc640 y<sub>i<\/sub> (1 &le; x<sub>i<\/sub> &le; dx, 1 &le; y<sub>i<\/sub> &le; dy) \uac00 \uc8fc\uc5b4\uc9c4\ub2e4. \ub450 \uc815\uc218\ub294 i\ubc88\uc9f8 \ucee4\ud53c \uc804\ubb38\uc810\uc758 \uc704\uce58\ub97c \ub098\ud0c0\ub0b8\ub2e4. \ud55c \uc0ac\uac70\ub9ac\uc5d0 \uc788\ub294 \ucee4\ud53c \uc804\ubb38\uc810\uc758 \uc218\ub294 \ucd5c\ub300 1\uac1c\uc774\ub2e4.<\/p>\r\n\r\n<p>\ub2e4\uc74c q\uac1c \uc904\uc5d0\ub294 \uc815\uc218 m\uc774 \ud55c \uc904\uc5d0 \ud558\ub098\uc529 \uc8fc\uc5b4\uc9c4\ub2e4. m (0 &le; m &le; 10<sup>6<\/sup>)\uc740 \uc0c1\uadfc\uc774\uac00 \ubaa8\ub2dd \ucee4\ud53c\ub97c \uc0ac\ub7ec \uac78\uc5b4\ub098\uac08 \uc218 \uc788\ub294 \ube14\ub85d\uc758 \ucd5c\ub300 \uac1c\uc218\uc774\ub2e4.<\/p>\r\n\r\n<p>\ub9c8\uc9c0\ub9c9 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4\uc758 \ub2e4\uc74c \uc904\uc5d0\ub294 0\uc774 \ub124 \uac1c \uc8fc\uc5b4\uc9c4\ub2e4.<\/p>\r\n","output":"<p>\uac01 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4 \ub9c8\ub2e4 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4 \ubc88\ud638\ub97c \ucd9c\ub825\ud55c\ub2e4. \uadf8 \ub2e4\uc74c, \ud55c \ucffc\ub9ac\ub2f9 \ud55c \uc904\uc529 \uc815\ub2f5\uc744 \ucd9c\ub825\ud55c\ub2e4. \uc785\ub825\uc73c\ub85c \uc8fc\uc5b4\uc9c4 \uac01 \ucffc\ub9ac m\ub9c8\ub2e4, m\ube14\ub85d \ub0b4\uc5d0 \uac00\uc7a5 \ub9ce\uc740 \ucee4\ud53c \uc804\ubb38\uc810\uc774 \uc788\ub294 \uacf3\uc758 \uc704\uce58\ub97c \ucd9c\ub825\ud55c\ub2e4.&nbsp;<\/p>\r\n\r\n<p>\uc608\ub97c \ub4e4\uc5b4, \uc608\uc81c \ucd9c\ub825\uc740 (3,4)\uc5d0\uc11c 1\ube14\ub85d \ub0b4\uc5d0 \ucee4\ud53c \uc804\ubb38\uc810\uc774 3\uac1c, (2,2)\uc5d0\uc11c 2\ube14\ub85d \ub0b4\uc5d0 \ucee4\ud53c \uc804\ubb38\uc810\uc774 4\uac1c, (3,1)\uc5d0\uc11c 4\ube14\ub85d \ub0b4\uc5d0 \ucee4\ud53c \uc804\ubb38\uc810\uc774 5\uac1c \uc788\ub2e4\ub294 \ub73b\uc774\ub2e4.<\/p>\r\n\r\n<p>\ub9cc\uc57d, \uac00\ub2a5\ud55c \uc704\uce58\uac00 \uc5ec\ub7ec\uac1c\ub77c\uba74, \uac00\uc7a5 \ub0a8\ucabd\uc5d0 \uc788\ub294 \uc704\uce58 (y\uc88c\ud45c\uac00 \uc791\uc740 \uac83)\uc744 \ucd9c\ub825\ud55c\ub2e4. \uadf8\ub798\ub3c4 \uc5ec\ub7ec\uac1c\uc778 \uacbd\uc6b0\uc5d0\ub294 \uac00\uc7a5 \uc11c\ucabd\uc5d0 \uc788\ub294 \uc704\uce58 (x\uc88c\ud45c\uac00 \uc791\uc740 \uac83)\uc744 \ucd9c\ub825\ud55c\ub2e4.<\/p>\r\n\r\n<p>\uc608\uc81c \ucd9c\ub825 \ud615\uc2dd\uc744 \ucc38\uace0\ud55c\ub2e4.<\/p>\r\n","hint":"","original":"0","html_title":"0","problem_lang_tcode":"Korean"},{"problem_id":"4219","problem_lang":"1","title":"Coffee Central","description":"<p>Is it just a fad or is it here to stay? You&rsquo;re not sure, but the steadily increasing number of coffee shops that are opening in your hometown has certainly become quite a draw. Apparently, people have become so addicted to coffee that apartments that are close to many coffee shops will actually fetch higher rents.<\/p>\r\n\r\n<p>This has come to the attention of a local real-estate company. They are interested in identifying the most valuable locations in the city in terms of their proximity to large numbers of coffee shops. They have given you a map of the city, marked with the locations of coffee shops. Assuming that the average person is willing to walk only a \ufb01xed number of blocks for their morning coffee, you have to \ufb01nd the location from which one can reach the largest number of coffee shops. As you are probably aware, your hometown is built on a square grid layout, with blocks aligned on north-south and east-west axes. Since you have to walk along streets, the distance between intersections (a, b) and (c, d) is |a-c| + |b-d|.<\/p>\r\n","input":"<p>The input contains several test cases. Each test case describes a city. The \ufb01rst line of each test case contains four integers dx, dy, n, and q. These are the dimensions of the city grid dx&nbsp;&times;&nbsp;dy (1 &le; dx, dy &le; 1000), the number of coffee shops n (0 &le; n &le; 5&middot;10<sup>5<\/sup>), and the number of queries q (1 &le; q &le; 20). Each of the next n lines contains two integers x<sub>i<\/sub> and y<sub>i<\/sub> (1 &le; x<sub>i<\/sub> &le; dx, 1 &le; y<sub>i<\/sub> &le; dy); these specify the location of the i<sup>th<\/sup> coffee shop. There will be at most one coffee shop per intersection. Each of the next q lines contains a single integer m (0 &le; m &le; 10<sup>6<\/sup>), the maximal distance that a person is willing to walk for a cup of coffee.<\/p>\r\n\r\n<p>The last test case is followed by a line containing four zeros.<\/p>\r\n","output":"<p>For each test case in the input, display its case number. Then display one line per query in the test case. Each line displays the maximum number of coffee shops reachable for the given query distance m followed by the optimal location. For example, the sample output shows that 3 coffee shops are within query distance 1 of the optimal location (3,4), 4 shops are within query distance 2 of optimal location (2,2), and 5 shops are within query distance 4 of optimal location (3,1). If there are multiple optimal locations, pick the location that is furthest south (minimal positive integer y-coordinate). If there is still a tie, pick the location furthest west (minimal positive integer x-coordinate).<\/p>\r\n\r\n<p>Follow the format of the sample output.<\/p>\r\n","hint":"","original":"1","html_title":"0","problem_lang_tcode":"English"}]

출처

ICPC > World Finals > 2011 World Finals E번