시간 제한메모리 제한제출정답맞힌 사람정답 비율
1 초 256 MB56431524061.069%

문제

부유한 집안의 상속자 상근이네 집은 그림과 같이 1미터의 정육각형이 붙어있는 상태이다. 크리스마스가 다가오기 때문에, 여자친구에게 잘 보이기 위해 상근이는 건물의 벽면을 조명으로 장식하려고 한다. 외부에 보이지 않는 부분에 조명을 장식하는 것은 낭비라고 생각했기 때문에, 밖에서 보이는 부분만 장식하려고 한다.

위의 그림은 상공에서 본 상근이네 집의 건물 배치이다. 정육각형 안의 숫자는 좌표를 나타낸다. 여기서 회색 정육각형은 건물의 위치이고, 흰색은 건물이 없는 곳이다. 위에서 붉은 색 선으로 표시된 부분이 밖에서 보이는 벽이고, 이 벽에 조명을 장식할 것이다. 벽의 총 길이는 64미터이다.

상근이네 집의 건물 위치 지도가 주어졌을 때, 조명을 장식할 벽면의 길이의 합을 구하는 프로그램을 작성하시오. 지도의 바깥은 자유롭게 왕래 할 수 있는 곳이고, 인접한 건물 사이는 통과할 수 없다.

입력

첫째 줄에 두 개의 정수 W와 H가 주어진다. (1 ≤ W, H ≤ 100) 다음 H줄에는 상근이네 집의 건물 배치가 주어진다. i+1줄에는 W개의 정수가 공백으로 구분되어 있다. j번째 (1 ≤ j ≤ w) 정수의 좌표는 (j, i)이며, 건물이 있을 때는 1이고, 없을 때는 0이다. 주어지는 입력에는 건물이 적어도 하나 있다.

지도는 다음과 같은 규칙에 의해 만들어졌다.

  • 지도의 가장 왼쪽 위에 있는 정육각형의 좌표는 (1,1)이다.
  • (x,y)의 오른족에 있는 정육각형의 좌표는 (x+1,y)이다.
  • y가 홀수 일 때, 아래쪽에 있는 정육각형의 좌표는 (x,y+1)이다.
  • y가 짝수 일 때, 오른쪽 아래에 있는 정육각형의 좌표는 (x,y+1)이다.

출력

조명을 장식하는 벽면의 길이의 합을 출력한다.

예제 입력 1

8 4
0 1 0 1 0 1 1 1
0 1 1 0 0 1 0 0
1 0 1 0 1 1 1 1
0 1 1 0 1 0 1 0

예제 출력 1

64

예제 입력 2

8 5
0 1 1 1 0 1 1 1
0 1 0 0 1 1 0 0
1 0 0 1 1 1 1 1
0 1 0 1 1 0 1 0
0 1 1 0 1 1 0 0

예제 출력 2

56
[{"problem_id":"5547","problem_lang":"0","title":"\uc77c\ub8e8\ubbf8\ub124\uc774\uc158","description":"<p>\ubd80\uc720\ud55c \uc9d1\uc548\uc758 \uc0c1\uc18d\uc790 \uc0c1\uadfc\uc774\ub124 \uc9d1\uc740 \uadf8\ub9bc\uacfc \uac19\uc774 1\ubbf8\ud130\uc758 \uc815\uc721\uac01\ud615\uc774 \ubd99\uc5b4\uc788\ub294 \uc0c1\ud0dc\uc774\ub2e4. \ud06c\ub9ac\uc2a4\ub9c8\uc2a4\uac00 \ub2e4\uac00\uc624\uae30 \ub54c\ubb38\uc5d0, \uc5ec\uc790\uce5c\uad6c\uc5d0\uac8c \uc798 \ubcf4\uc774\uae30 \uc704\ud574 \uc0c1\uadfc\uc774\ub294 \uac74\ubb3c\uc758 \ubcbd\uba74\uc744 \uc870\uba85\uc73c\ub85c \uc7a5\uc2dd\ud558\ub824\uace0 \ud55c\ub2e4. \uc678\ubd80\uc5d0 \ubcf4\uc774\uc9c0 \uc54a\ub294 \ubd80\ubd84\uc5d0 \uc870\uba85\uc744 \uc7a5\uc2dd\ud558\ub294 \uac83\uc740 \ub0ad\ube44\ub77c\uace0 \uc0dd\uac01\ud588\uae30 \ub54c\ubb38\uc5d0, \ubc16\uc5d0\uc11c \ubcf4\uc774\ub294 \ubd80\ubd84\ub9cc \uc7a5\uc2dd\ud558\ub824\uace0 \ud55c\ub2e4.<\/p>\r\n\r\n<p style=\"text-align: center;\"><img alt=\"\" src=\"\/upload\/images\/building.png\" style=\"width: 522px; height: 233px;\" \/><\/p>\r\n\r\n<p>\uc704\uc758 \uadf8\ub9bc\uc740 \uc0c1\uacf5\uc5d0\uc11c \ubcf8 \uc0c1\uadfc\uc774\ub124 \uc9d1\uc758 \uac74\ubb3c \ubc30\uce58\uc774\ub2e4. \uc815\uc721\uac01\ud615 \uc548\uc758 \uc22b\uc790\ub294 \uc88c\ud45c\ub97c \ub098\ud0c0\ub0b8\ub2e4. \uc5ec\uae30\uc11c \ud68c\uc0c9 \uc815\uc721\uac01\ud615\uc740 \uac74\ubb3c\uc758 \uc704\uce58\uc774\uace0, \ud770\uc0c9\uc740 \uac74\ubb3c\uc774 \uc5c6\ub294 \uacf3\uc774\ub2e4. \uc704\uc5d0\uc11c \ubd89\uc740 \uc0c9 \uc120\uc73c\ub85c \ud45c\uc2dc\ub41c \ubd80\ubd84\uc774 \ubc16\uc5d0\uc11c \ubcf4\uc774\ub294 \ubcbd\uc774\uace0, \uc774 \ubcbd\uc5d0 \uc870\uba85\uc744 \uc7a5\uc2dd\ud560 \uac83\uc774\ub2e4. \ubcbd\uc758 \ucd1d \uae38\uc774\ub294 64\ubbf8\ud130\uc774\ub2e4.<\/p>\r\n\r\n<p>\uc0c1\uadfc\uc774\ub124 \uc9d1\uc758 \uac74\ubb3c \uc704\uce58 \uc9c0\ub3c4\uac00 \uc8fc\uc5b4\uc84c\uc744 \ub54c, \uc870\uba85\uc744 \uc7a5\uc2dd\ud560 \ubcbd\uba74\uc758 \uae38\uc774\uc758 \ud569\uc744 \uad6c\ud558\ub294 \ud504\ub85c\uadf8\ub7a8\uc744 \uc791\uc131\ud558\uc2dc\uc624. \uc9c0\ub3c4\uc758 \ubc14\uae65\uc740 \uc790\uc720\ub86d\uac8c \uc655\ub798 \ud560 \uc218 \uc788\ub294 \uacf3\uc774\uace0, \uc778\uc811\ud55c \uac74\ubb3c \uc0ac\uc774\ub294 \ud1b5\uacfc\ud560 \uc218 \uc5c6\ub2e4.<\/p>\r\n","input":"<p>\uccab\uc9f8 \uc904\uc5d0 \ub450 \uac1c\uc758 \uc815\uc218 W\uc640 H\uac00 \uc8fc\uc5b4\uc9c4\ub2e4. (1 &le; W, H &le; 100) \ub2e4\uc74c H\uc904\uc5d0\ub294 \uc0c1\uadfc\uc774\ub124 \uc9d1\uc758 \uac74\ubb3c \ubc30\uce58\uac00 \uc8fc\uc5b4\uc9c4\ub2e4. i+1\uc904\uc5d0\ub294 W\uac1c\uc758 \uc815\uc218\uac00 \uacf5\ubc31\uc73c\ub85c \uad6c\ubd84\ub418\uc5b4&nbsp;\uc788\ub2e4. j\ubc88\uc9f8 (1 &le; j &le; w) \uc815\uc218\uc758 \uc88c\ud45c\ub294 (j, i)\uc774\uba70, \uac74\ubb3c\uc774 \uc788\uc744 \ub54c\ub294 1\uc774\uace0, \uc5c6\uc744 \ub54c\ub294 0\uc774\ub2e4. \uc8fc\uc5b4\uc9c0\ub294 \uc785\ub825\uc5d0\ub294 \uac74\ubb3c\uc774 \uc801\uc5b4\ub3c4 \ud558\ub098 \uc788\ub2e4.<\/p>\r\n\r\n<p>\uc9c0\ub3c4\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uaddc\uce59\uc5d0 \uc758\ud574 \ub9cc\ub4e4\uc5b4\uc84c\ub2e4.<\/p>\r\n\r\n<ul>\r\n\t<li>\uc9c0\ub3c4\uc758 \uac00\uc7a5 \uc67c\ucabd \uc704\uc5d0 \uc788\ub294 \uc815\uc721\uac01\ud615\uc758 \uc88c\ud45c\ub294 (1,1)\uc774\ub2e4.<\/li>\r\n\t<li>(x,y)\uc758 \uc624\ub978\uc871\uc5d0 \uc788\ub294 \uc815\uc721\uac01\ud615\uc758 \uc88c\ud45c\ub294 (x+1,y)\uc774\ub2e4.<\/li>\r\n\t<li>y\uac00 \ud640\uc218 \uc77c \ub54c, \uc544\ub798\ucabd\uc5d0 \uc788\ub294 \uc815\uc721\uac01\ud615\uc758 \uc88c\ud45c\ub294 (x,y+1)\uc774\ub2e4.<\/li>\r\n\t<li>y\uac00 \uc9dd\uc218 \uc77c \ub54c, \uc624\ub978\ucabd \uc544\ub798\uc5d0 \uc788\ub294 \uc815\uc721\uac01\ud615\uc758 \uc88c\ud45c\ub294 (x,y+1)\uc774\ub2e4.<\/li>\r\n<\/ul>\r\n","output":"<p>\uc870\uba85\uc744 \uc7a5\uc2dd\ud558\ub294 \ubcbd\uba74\uc758 \uae38\uc774\uc758 \ud569\uc744 \ucd9c\ub825\ud55c\ub2e4.<\/p>\r\n","hint":"","original":"0","html_title":"0","problem_lang_tcode":"Korean"},{"problem_id":"5547","problem_lang":"2","title":"\u30a4\u30eb\u30df\u30cd\u30fc\u30b7\u30e7\u30f3 (Illumination)","description":"<p>JOI \u793e\u306e\u5efa\u7269\u306f\u56f3\u306e\u3088\u3046\u306a 1 \u8fba 1 \u30e1\u30fc\u30c8\u30eb\u306e\u6b63\u516d\u89d2\u5f62\u3092\u3064\u306a\u304e\u5408\u308f\u305b\u305f\u5f62\u3067\u3042\u308b\uff0e\u30af\u30ea\u30b9\u30de\u30b9\u304c\u8fd1\u3065\u3044\u3066\u3044\u308b\u306e\u3067\uff0cJOI \u793e\u3067\u306f\u5efa\u7269\u306e\u58c1\u9762\u3092\u30a4\u30eb\u30df\u30cd\u30fc\u30b7\u30e7\u30f3\u3067\u98fe\u308a\u4ed8\u3051\u308b\u3053\u3068\u306b\u3057\u305f\uff0e\u305f\u3060\u3057\uff0c\u5916\u304b\u3089\u898b\u3048\u306a\u3044\u90e8\u5206\u306b\u30a4\u30eb\u30df\u30cd\u30fc\u30b7\u30e7\u30f3\u3092\u65bd\u3059\u306e\u306f\u7121\u99c4\u306a\u306e\u3067\uff0c\u30a4\u30eb\u30df\u30cd\u30fc\u30b7\u30e7\u30f3\u306f\u5916\u304b\u3089\u5efa\u7269\u306e\u4e2d\u3092\u901a\u3089\u305a\u306b\u884c\u304f\u3053\u3068\u306e\u3067\u304d\u308b\u58c1\u9762\u306b\u306e\u307f\u98fe\u308a\u4ed8\u3051\u308b\u3053\u3068\u306b\u3057\u305f\uff0e<\/p>\r\n\r\n<p style=\"text-align: center;\"><img alt=\"\" src=\"\/upload\/images\/building.png\" style=\"height:233px; width:522px\" \/><\/p>\r\n\r\n<p style=\"text-align: center;\">\u56f3: JOI \u793e\u306e\u5efa\u7269\u306e\u914d\u7f6e\u306e\u4f8b<\/p>\r\n\r\n<p>\u4e0a\u306e\u56f3\u306f\u4e0a\u7a7a\u304b\u3089\u898b\u305f JOI \u793e\u306e\u5efa\u7269\u306e\u914d\u7f6e\u306e\u4f8b\u3067\u3042\u308b\uff0e\u6b63\u516d\u89d2\u5f62\u5185\u306e\u6570\u5b57\u306f\u5ea7\u6a19\u3092\u8868\u3059\uff0e\u7070\u8272\u306e\u6b63\u516d\u89d2\u5f62\u306f\u5efa\u7269\u304c\u3042\u308b\u5834\u6240\u3092\u8868\u3057\uff0c\u767d\u8272\u306e\u6b63\u516d\u89d2\u5f62\u306f\u5efa\u7269\u304c\u306a\u3044\u5834\u6240\u3092\u8868\u3059\uff0e\u3053\u306e\u4f8b\u3067\u306f\uff0c\u8d64\u306e\u5b9f\u7dda\u3067\u793a\u3055\u308c\u308b\u90e8\u5206\u304c\u30a4\u30eb\u30df\u30cd\u30fc\u30b7\u30e7\u30f3\u3067\u98fe\u308a\u4ed8\u3051\u3092\u884c\u3046\u58c1\u9762\u3068\u306a\u308a\uff0c\u305d\u306e\u58c1\u9762\u306e\u9577\u3055\u306e\u5408\u8a08\u306f 64 \u30e1\u30fc\u30c8\u30eb\u3068\u306a\u308b\uff0e<\/p>\r\n\r\n<p>JOI \u793e\u306e\u5efa\u7269\u306e\u914d\u7f6e\u3092\u8868\u3059\u5730\u56f3\u304c\u4e0e\u3048\u3089\u308c\u305f\u3068\u304d\uff0c\u98fe\u308a\u4ed8\u3051\u3092\u884c\u3046\u58c1\u9762\u306e\u9577\u3055\u306e\u5408\u8a08\u3092\u6c42\u3081\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u6210\u305b\u3088\uff0e\u305f\u3060\u3057\uff0c\u5730\u56f3\u306e\u5916\u5074\u306f\u81ea\u7531\u306b\u884c\u304d\u6765\u3067\u304d\u308b\u3082\u306e\u3068\u3057\uff0c\u96a3\u63a5\u3057\u305f\u5efa\u7269\u306e\u9593\u306f\u901a\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3044\u3082\u306e\u3068\u3059\u308b\uff0e<\/p>\r\n","input":"<p>\u5165\u529b\u30d5\u30a1\u30a4\u30eb\u306e 1 \u884c\u76ee\u306b\u306f 2 \u3064\u306e\u6574\u6570 W, H (1 \u2266 W \u2266 100\uff0c1 \u2266 H \u2266 100) \u304c\u7a7a\u767d\u3092\u533a\u5207\u308a\u3068\u3057\u3066\u66f8\u304b\u308c\u3066\u3044\u308b\uff0e\u7d9a\u304f H \u884c\u306b\u306f JOI \u793e\u306e\u5efa\u7269\u306e\u914d\u7f6e\u304c\u66f8\u304b\u308c\u3066\u3044\u308b\uff0ei + 1 \u884c\u76ee (1 \u2266 i \u2266 H) \u306b\u306f W \u500b\u306e\u6574\u6570\u304c\u7a7a\u767d\u3092\u533a\u5207\u308a\u3068\u3057\u3066\u66f8\u304b\u308c\u3066\u304a\u308a\uff0cj \u500b\u76ee (1 \u2266 j \u2266 W) \u306e\u6574\u6570\u306f\u5ea7\u6a19 (j, i) \u306e\u6b63\u516d\u89d2\u5f62\u306b\u5efa\u7269\u304c\u3042\u308b\u6642\u306f 1 \u3067\u3042\u308a\uff0c\u306a\u3044\u6642\u306f 0 \u3067\u3042\u308b\uff0e\u307e\u305f\uff0c\u4e0e\u3048\u3089\u308c\u308b\u5165\u529b\u30c7\u30fc\u30bf\u306b\u306f\u5efa\u7269\u304c\u5fc5\u305a 1 \u3064\u4ee5\u4e0a\u3042\u308b\uff0e<\/p>\r\n\r\n<p>\u5730\u56f3\u306f\u4ee5\u4e0b\u306e\u898f\u5247\u306b\u3088\u3063\u3066\u8a18\u8ff0\u3055\u308c\u3066\u3044\u308b\uff0e<\/p>\r\n\r\n<ul>\r\n\t<li>\u5730\u56f3\u306e\u6700\u3082\u5317\u306e\u884c\u306e\u6700\u3082\u897f\u306e\u6b63\u516d\u89d2\u5f62\u306f\u5ea7\u6a19 (1, 1) \u3067\u3042\u308b\uff0e<\/li>\r\n\t<li>\u5ea7\u6a19 (x, y) \u306e\u6b63\u516d\u89d2\u5f62\u306b\u96a3\u63a5\u3059\u308b\u6771\u96a3\u306e\u6b63\u516d\u89d2\u5f62\u306f\u5ea7\u6a19 (x + 1, y) \u3067\u3042\u308b\uff0e<\/li>\r\n\t<li>y \u304c\u5947\u6570\u306e\u6642\uff0c\u5ea7\u6a19 (x, y) \u306e\u6b63\u516d\u89d2\u5f62\u306b\u96a3\u63a5\u3059\u308b\u5357\u897f\u306e\u6b63\u516d\u89d2\u5f62\u306e\u5ea7\u6a19\u306f (x, y + 1) \u3067\u3042\u308b\uff0e<\/li>\r\n\t<li>y \u304c\u5076\u6570\u306e\u6642\uff0c\u5ea7\u6a19 (x, y) \u306e\u6b63\u516d\u89d2\u5f62\u306b\u96a3\u63a5\u3059\u308b\u5357\u6771\u306e\u6b63\u516d\u89d2\u5f62\u306e\u5ea7\u6a19\u306f (x, y + 1) \u3067\u3042\u308b\uff0e<\/li>\r\n<\/ul>\r\n","output":"<p>\u30a4\u30eb\u30df\u30cd\u30fc\u30b7\u30e7\u30f3\u3067\u98fe\u308a\u4ed8\u3051\u3092\u884c\u3046\u58c1\u9762\u306e\u9577\u3055\u306e\u5408\u8a08\u3092 1 \u884c\u3067\u51fa\u529b\u305b\u3088\uff0e<\/p>\r\n","hint":"<p>\u5165\u51fa\u529b\u4f8b 1 \u306f\u554f\u984c\u6587\u4e2d\u306e\u4f8b\u306b\u5bfe\u5fdc\u3057\u3066\u304a\u308a\uff0c\u30a4\u30eb\u30df\u30cd\u30fc\u30b7\u30e7\u30f3\u3067\u98fe\u308a\u4ed8\u3051\u3092\u884c\u3046\u58c1\u9762\u306e\u9577\u3055\u306e\u5408\u8a08\u306f 64 \u30e1\u30fc\u30c8\u30eb\u3067\u3042\u308b\uff0e<\/p>\r\n","original":"1","html_title":"0","problem_lang_tcode":"Japanese"}]

출처

Olympiad > Japanese Olympiad in Informatics > Japanese Olympiad in Informatics Qualification Round > JOI 2012 예선 5번

  • 문제를 번역한 사람: baekjoon
  • 문제의 오타를 찾은 사람: lein