시간 제한 메모리 제한 제출 정답 맞은 사람 정답 비율
1 초 128 MB 732 334 279 45.964%

문제

상근이는 혼자 보드 게임을 하고 있다. 이 보드 게임의 보드는 N칸으로 이루어져 있고, 출발점은 1칸, 도착점은 N칸이다. 각 칸에는 지시 사항이 적혀있다. 지시 사항은 말을 얼만큼 이동해야 하는지가 써있다. 

상근이는 도착점에 도착할 때까지 주사위를 굴려 나온 눈의 수만큼 그 칸으로 이동한다. 이때, 도착한 칸에 쓰여 있는 지시만큼 말을 다시 이동시킨다. 지시 사항으로 이동해서 도착한 칸에 쓰여 있는 지시는 따르지 않는다.

N칸에 도착했을 때와 그 칸을 넘는 경우도 도착한 것이다.

상근이가 던졌을 때 나온 주사위의 눈과 보드판의 지시사항이 주어졌을 때, 몇 번 만에 도착하는지 구하는 프로그램을 작성하시오.

입력

첫째 줄에 N과 M이 주어진다. M은 상근이가 주사위를 던짓 횟수이다. (2 ≤ N ≤ 1000, 1 ≤ M ≤ 1000)

다음 N개 줄에는 -999이상 999이하의 정수가 하나씩 적혀있다. i번째 정수는 i번 칸에 쓰여 있는 지시사항 X이다. 이때, X가 0이면 아무것도 하지 않고 그 자리에 멈춰 있는다. X가 양수인 경우에는 X칸 더 앞으로 진행하는 것을, 음수인 경우에는 |X|칸 뒤로 진행하는 것을 나타낸다.

다음 M개 줄에는 1이상 6이하의 정수가 주어진다. j번째 정수는 상근이가 주사위를 j번째로 던졌을 때, 나온 눈이다.

1번 칸과 N번 칸에 쓰여 있는 지시사항은 항상 0이다. 또, 항상 주사위를 M번 이하로 던져서 도착할 수 있다.  또, 1보다 작은 칸으로 이동하라는 지시가 있는 경우도 없다.

출력

주사위를 몇 번 던져서 도착할 수 있는지 출력한다.

예제 입력 1

10 5
0
0
5
6
-3
8
1
8
-4
0
1
3
5
1
5

예제 출력 1

5
[{"problem_id":"5566","problem_lang":"0","title":"\uc8fc\uc0ac\uc704 \uac8c\uc784","description":"<p>\r\n\t\uc0c1\uadfc\uc774\ub294 \ud63c\uc790 \ubcf4\ub4dc \uac8c\uc784\uc744 \ud558\uace0 \uc788\ub2e4. \uc774 \ubcf4\ub4dc \uac8c\uc784\uc758 \ubcf4\ub4dc\ub294 N\uce78\uc73c\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\uace0, \ucd9c\ubc1c\uc810\uc740 1\uce78, \ub3c4\ucc29\uc810\uc740 N\uce78\uc774\ub2e4. \uac01 \uce78\uc5d0\ub294 \uc9c0\uc2dc \uc0ac\ud56d\uc774 \uc801\ud600\uc788\ub2e4. \uc9c0\uc2dc \uc0ac\ud56d\uc740 \ub9d0\uc744 \uc5bc\ub9cc\ud07c \uc774\ub3d9\ud574\uc57c \ud558\ub294\uc9c0\uac00 \uc368\uc788\ub2e4.&nbsp;<\/p>\r\n\r\n<p>\r\n\t\uc0c1\uadfc\uc774\ub294 \ub3c4\ucc29\uc810\uc5d0 \ub3c4\ucc29\ud560 \ub54c\uae4c\uc9c0 \uc8fc\uc0ac\uc704\ub97c \uad74\ub824 \ub098\uc628 \ub208\uc758 \uc218\ub9cc\ud07c \uadf8 \uce78\uc73c\ub85c \uc774\ub3d9\ud55c\ub2e4. \uc774\ub54c, \ub3c4\ucc29\ud55c \uce78\uc5d0 \uc4f0\uc5ec \uc788\ub294 \uc9c0\uc2dc\ub9cc\ud07c \ub9d0\uc744 \ub2e4\uc2dc \uc774\ub3d9\uc2dc\ud0a8\ub2e4. \uc9c0\uc2dc \uc0ac\ud56d\uc73c\ub85c \uc774\ub3d9\ud574\uc11c \ub3c4\ucc29\ud55c \uce78\uc5d0 \uc4f0\uc5ec \uc788\ub294 \uc9c0\uc2dc\ub294 \ub530\ub974\uc9c0 \uc54a\ub294\ub2e4.<\/p>\r\n\r\n<p>\r\n\tN\uce78\uc5d0 \ub3c4\ucc29\ud588\uc744 \ub54c\uc640 \uadf8 \uce78\uc744 \ub118\ub294 \uacbd\uc6b0\ub3c4 \ub3c4\ucc29\ud55c \uac83\uc774\ub2e4.<\/p>\r\n\r\n<p>\r\n\t\uc0c1\uadfc\uc774\uac00 \ub358\uc84c\uc744 \ub54c \ub098\uc628 \uc8fc\uc0ac\uc704\uc758 \ub208\uacfc \ubcf4\ub4dc\ud310\uc758 \uc9c0\uc2dc\uc0ac\ud56d\uc774 \uc8fc\uc5b4\uc84c\uc744 \ub54c, \uba87 \ubc88 \ub9cc\uc5d0 \ub3c4\ucc29\ud558\ub294\uc9c0 \uad6c\ud558\ub294 \ud504\ub85c\uadf8\ub7a8\uc744 \uc791\uc131\ud558\uc2dc\uc624.<\/p>\r\n","input":"<p>\r\n\t\uccab\uc9f8 \uc904\uc5d0 N\uacfc M\uc774 \uc8fc\uc5b4\uc9c4\ub2e4. M\uc740 \uc0c1\uadfc\uc774\uac00 \uc8fc\uc0ac\uc704\ub97c \ub358\uc9d3 \ud69f\uc218\uc774\ub2e4. (2 &le; N &le; 1000, 1 &le; M &le; 1000)<\/p>\r\n\r\n<p>\r\n\t\ub2e4\uc74c N\uac1c \uc904\uc5d0\ub294 -999\uc774\uc0c1 999\uc774\ud558\uc758 \uc815\uc218\uac00 \ud558\ub098\uc529 \uc801\ud600\uc788\ub2e4. i\ubc88\uc9f8 \uc815\uc218\ub294 i\ubc88 \uce78\uc5d0 \uc4f0\uc5ec \uc788\ub294 \uc9c0\uc2dc\uc0ac\ud56d X\uc774\ub2e4. \uc774\ub54c, X\uac00 0\uc774\uba74 \uc544\ubb34\uac83\ub3c4 \ud558\uc9c0 \uc54a\uace0 \uadf8 \uc790\ub9ac\uc5d0 \uba48\ucdb0 \uc788\ub294\ub2e4. X\uac00 \uc591\uc218\uc778 \uacbd\uc6b0\uc5d0\ub294 X\uce78 \ub354 \uc55e\uc73c\ub85c \uc9c4\ud589\ud558\ub294 \uac83\uc744, \uc74c\uc218\uc778 \uacbd\uc6b0\uc5d0\ub294 |X|\uce78 \ub4a4\ub85c \uc9c4\ud589\ud558\ub294 \uac83\uc744 \ub098\ud0c0\ub0b8\ub2e4.<\/p>\r\n\r\n<p>\r\n\t\ub2e4\uc74c M\uac1c \uc904\uc5d0\ub294 1\uc774\uc0c1 6\uc774\ud558\uc758 \uc815\uc218\uac00 \uc8fc\uc5b4\uc9c4\ub2e4. j\ubc88\uc9f8 \uc815\uc218\ub294 \uc0c1\uadfc\uc774\uac00 \uc8fc\uc0ac\uc704\ub97c j\ubc88\uc9f8\ub85c \ub358\uc84c\uc744 \ub54c, \ub098\uc628 \ub208\uc774\ub2e4.<\/p>\r\n\r\n<p>\r\n\t1\ubc88 \uce78\uacfc N\ubc88 \uce78\uc5d0 \uc4f0\uc5ec \uc788\ub294 \uc9c0\uc2dc\uc0ac\ud56d\uc740 \ud56d\uc0c1 0\uc774\ub2e4. \ub610, \ud56d\uc0c1 \uc8fc\uc0ac\uc704\ub97c M\ubc88 \uc774\ud558\ub85c \ub358\uc838\uc11c \ub3c4\ucc29\ud560 \uc218 \uc788\ub2e4. &nbsp;\ub610, 1\ubcf4\ub2e4 \uc791\uc740 \uce78\uc73c\ub85c \uc774\ub3d9\ud558\ub77c\ub294 \uc9c0\uc2dc\uac00 \uc788\ub294 \uacbd\uc6b0\ub3c4 \uc5c6\ub2e4.<\/p>\r\n","output":"<p>\r\n\t\uc8fc\uc0ac\uc704\ub97c \uba87 \ubc88 \ub358\uc838\uc11c \ub3c4\ucc29\ud560 \uc218 \uc788\ub294\uc9c0 \ucd9c\ub825\ud55c\ub2e4.<\/p>\r\n","hint":"","original":"0","problem_lang_code":"\ud55c\uad6d\uc5b4"},{"problem_id":"5566","problem_lang":"2","title":"\u3059\u3054\u308d\u304f","description":"<p>JOI \u3055\u3093\u306f\u4e00\u4eba\u3067\u3059\u3054\u308d\u304f\u904a\u3073\u3092\u3057\u3066\u3044\u308b\uff0e \u3053\u306e\u3059\u3054\u308d\u304f\u306b\u306f\u4e00\u76f4\u7dda\u4e0a\u306b N \u500b\u306e\u30de\u30b9\u304c\u3042\u308a\uff0c\u305d\u308c\u305e\u308c\u79fb\u52d5\u306e\u6307\u793a\u304c\u66f8\u304b\u308c\u3066\u3044\u308b\uff0e\u30b9\u30bf\u30fc\u30c8\u5730\u70b9\u306f 1 \u30de\u30b9\u76ee\u3067\u3042\u308a\uff0c\u30b4\u30fc\u30eb\u306fN\u30de\u30b9\u76ee\u3067\u3042\u308b\uff0e JOI \u3055\u3093\u306f\u30b4\u30fc\u30eb\u3059\u308b\u307e\u3067\u6b21\u3092\u7e70\u308a\u8fd4\u3059\uff0e<\/p>\r\n\r\n<p>\u30b5\u30a4\u30b3\u30ed\u3092\u632f\u3063\u3066\u51fa\u305f\u76ee\u306e\u6570\u3060\u3051\u73fe\u5728\u306e\u30de\u30b9\u304b\u3089\u9032\u307f\uff0c\u305d\u306e\u30de\u30b9\u306e\u6307\u793a\u306b\u5f93\u3046\uff0e \u6307\u793a\u306b\u5f93\u3063\u3066\u79fb\u52d5\u3057\u305f\u5148\u306e\u30de\u30b9\u306e\u6307\u793a\u306b\u306f\u5f93\u308f\u306a\u3044\uff0e<\/p>\r\n\r\n<p>\u3061\u3087\u3046\u3069 N \u30de\u30b9\u76ee\u306b\u6b62\u307e\u308b\u6642\u3060\u3051\u3067\u306a\u304f\uff0c\u79fb\u52d5\u5148\u304c N \u30de\u30b9\u76ee\u3092\u8d85\u3048\u308b\u5834\u5408\u3082\u30b4\u30fc\u30eb\u3068\u306a\u308b\uff0e<\/p>\r\n\r\n<p>\u3059\u3054\u308d\u304f\u306e\u76e4\u9762\u3068\uff0c M \u56de\u5206\u306e\u30b5\u30a4\u30b3\u30ed\u306e\u51fa\u308b\u76ee\u304c\u4e0e\u3048\u3089\u308c\u305f\u3068\u304d\uff0c\u30b5\u30a4\u30b3\u30ed\u3092\u4f55\u56de\u632f\u3063\u305f\u3068\u3053\u308d\u3067\u30b4\u30fc\u30eb\u3059\u308b\u304b\u3092\u51fa\u529b\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u6210\u305b\u3088\uff0e<\/p>\r\n","input":"<p>\u5165\u529b\u306f 1+N+M \u884c\u304b\u3089\u306a\u308b\uff0e<\/p>\r\n\r\n<p>\u5165\u529b\u306e 1 \u884c\u76ee\u306b\u306f\uff12\u3064\u306e\u6574\u6570 N,M \uff082 \u2266 N \u2266 1000 \uff0c1 \u2266 M \u2266 1000 \uff09\u304c\u7a7a\u767d\u3092\u533a\u5207\u308a\u3068\u3057\u3066\u66f8\u304b\u308c\u3066\u3044\u308b\uff0e N \u306f\u3059\u3054\u308d\u304f\u306e\u30de\u30b9\u76ee\u306e\u500b\u6570\u3092\uff0c M \u306f\u4e0e\u3048\u3089\u308c\u308b\u30b5\u30a4\u30b3\u30ed\u306e\u76ee\u306e\u500b\u6570\u3092\u8868\u3059\uff0e<\/p>\r\n\r\n<p>\u7d9a\u304f N \u884c\u306b\u306f -999 \u4ee5\u4e0a 999 \u4ee5\u4e0b\u306e\u6574\u6570\u304c\uff11\u3064\u305a\u3064\u66f8\u304b\u308c\u3066\u3044\u308b\uff0e 1+i \u884c\u76ee \uff08 1 \u2266 i \u2266 N \uff09 \u306e\u6574\u6570\u306f\uff0c\u3059\u3054\u308d\u304f\u306e i \u756a\u76ee\u306e\u30de\u30b9\u306e\u6307\u793a\u3092\u8868\u3059\uff0e \u66f8\u304b\u308c\u3066\u3044\u308b\u6574\u6570\u3092 X \u3068\u3059\u308b\uff0e X=0 \u306e\u3068\u304d\u306f\u300c\u4f55\u3082\u3057\u306a\u3044\u300d\u3092\uff0c X&gt;0 \u306e\u3068\u304d\u306f\u300c X \u30de\u30b9\u9032\u3080\u300d\u3092\uff0cX&lt;0 \u306e\u3068\u304d\u306f\u300c |X| \u30de\u30b9\u623b\u308b\u300d\u306e\u6307\u793a\u3092\u8868\u3059\uff0e\u305f\u3060\u3057\uff0c |X| \u306f X \u306e\u7d76\u5bfe\u5024\u3092\u8868\u3059\uff0e<\/p>\r\n\r\n<p>\u7d9a\u304f M \u884c\u306b\u306f 1 \u4ee5\u4e0a 6 \u4ee5\u4e0b\u306e\u6574\u6570\u304c\uff11\u3064\u305a\u3064\u66f8\u304b\u308c\u3066\u304a\u308a\uff0c 1+N+j \u884c\u76ee \uff08 1 \u2266 j \u2266 M \uff09\u306e\u6570\u306f j \u56de\u76ee\u306b\u51fa\u308b\u30b5\u30a4\u30b3\u30ed\u306e\u76ee\u3092\u8868\u3059\uff0e<\/p>\r\n\r\n<p>\u305f\u3060\u3057\uff0c 2 \u884c\u76ee\u3068 1+N \u884c\u76ee\u306e\u6570\u306f\u5fc5\u305a 0 \u3067\u3042\u308b\uff0e 1 \u30de\u30b9\u76ee\u3088\u308a\u3082\u524d\u306e\u30de\u30b9\u306b\u79fb\u52d5\u3055\u305b\u308b\u6307\u793a\u304c\u66f8\u304b\u308c\u3066\u3044\u308b\u30de\u30b9\u306f\u306a\u3044\uff0e \u307e\u305f\uff0c\u3069\u306e\u63a1\u70b9\u7528\u5165\u529b\u30c7\u30fc\u30bf\u306b\u304a\u3044\u3066\u3082\u30b5\u30a4\u30b3\u30ed\u3092\u632f\u308b\u56de\u6570\u304c M \u4ee5\u4e0b\u3067\u30b4\u30fc\u30eb\u3067\u304d\u308b\uff0e<\/p>\r\n","output":"<p>\u51fa\u529b\u306f\uff0c\u30b5\u30a4\u30b3\u30ed\u3092\u4f55\u56de\u632f\u3063\u305f\u3068\u3053\u308d\u3067\u30b4\u30fc\u30eb\u3059\u308b\u304b\u3092\u8868\u3059\u6574\u6570\u306e\u307f\u3092\u542b\u3080 1 \u884c\u304b\u3089\u306a\u308b\uff0e<\/p>\r\n\r\n<p>&nbsp;<\/p>\r\n","hint":"<p><img alt=\"\" src=\"\/upload\/images\/2010-yo-t2-fig01.png\" style=\"height:261px; width:504px\" \/><\/p>\r\n","original":"1","problem_lang_code":"\uc77c\ubcf8\uc5b4"}]

출처

Olympiad > 일본정보올림피아드 예선 > JOI 2010 예선 2번

  • 문제를 번역한 사람: baekjoon
  • 어색한 표현을 찾은 사람: topology