시간 제한메모리 제한제출정답맞힌 사람정답 비율
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문제

숙제를 하지 않고 체스와 조합론에 빠져있던 은재가 생활관에 체스판을 하나 들고 왔다. 이 체스판은 특이해서 $8 \times 8$ 형태의 기본적인 판 뿐만 아니라 $17 \times 19$ 크기나 심지어 $1 \times 100$의 크기처럼 자유자재로 판의 크기를 조절할 수 있다.

체스 고수가 되기 위해서 열심히 체스를 두던 은재는 수많은 패배 끝에, 상대 기물의 수비가 약한 약점 칸을 찾아서 공략하는 것이 중요하다는 걸 깨닫게 되었다. 조합론에 빠진 은재는 퀸을 움직여서 상대의 약점 칸으로 보내는 방법이 얼마나 있을지 궁금해서 하라는 체스는 두지 않고 다음과 같은 질문을 던지게 된다.

체스에서 퀸이 가장 중요한 기물인데, 지금 내 퀸이 있는 위치에서 정확하게 $K$번 움직여서 원하는 위치로 보내는 방법이 얼마나 될까?

현재 체스판에는 퀸의 이동을 방해하는 장애물들과 은재의 퀸이 있다. 장애물이 없을 수도 있다.

체스판은 $N$행 $M$열로 구성되어 있고, $r$행 $c$열의 칸은 $(r, c)$로 나타낸다. $(1 \le r \le N$; $1 \le c \le M)$ 또한, 체스판의 각 칸은 장애물이 있는 칸이거나 없는 칸이다.

초기에 퀸의 위치는 $(R_s, C_s)$, 퀸을 보내고자 하는 위치는 $(R_e, C_e)$이며, 아래 규칙에 따라 퀸을 움직일 수 있다.

  • 현재 칸을 $(R, C)$라고 할 때, 다음 $8$가지 방향 중 하나의 방향으로 원하는 거리만큼 움직일 수 있다.
    • 위 — $(R - 1, C), (R - 2, C), (R - 3, C), \cdots$
    • 아래 — $(R + 1, C), (R + 2, C), (R + 3, C), \cdots$
    • 왼쪽 — $(R, C - 1), (R, C - 2), (R, C - 3), \cdots$
    • 오른쪽 — $(R, C + 1), (R, C + 2), (R, C + 3), \cdots$
    • 왼쪽 위 대각선 — $(R - 1, C - 1), (R - 2, C - 2), (R - 3, C - 3), \cdots$
    • 오른쪽 위 대각선 — $(R - 1, C + 1), (R - 2, C + 2), (R - 3, C + 3), \cdots$
    • 왼쪽 아래 대각선 — $(R + 1, C - 1), (R + 2, C - 2), (R + 3, C - 3), \cdots$
    • 오른쪽 아래 대각선 — $(R + 1, C + 1), (R + 2, C + 2), (R + 3, C + 3), \cdots$
  • 정한 방향으로 움직일 때 장애물이 있는 칸을 지날 수 없다.
  • 체스판 밖으로 나가거나 장애물이 있는 칸으로 움직일 수 없다.
  • 두 번 연속으로 같은 방향으로 움직일 수 없다.
  • 퀸을 제자리에 두고 턴을 넘기는 것은 불가능하다.

은재를 위해 은재가 퀸을 $K$번 움직여서 $(R_e, C_e)$ 칸으로 보낼 수 있는 경우의 수를 구하는 프로그램을 작성해보자!

입력

첫 번째 줄에 세 정수 $N$, $M$, $K$가 주어진다.

$i + 1$번째 줄에 문자열 $S_i = S_{i1} S_{i2} \cdots S_{iM}$이 주어진다. $(i, j)$ 칸에 장애물이 있으면 $S_{ij}=$#이고, $(i, j)$ 칸에 장애물이 없으면 $S_{ij}=$.이다. $(1 \le i \le N$; $1 \le j \le M)$

$N+2$번째 줄에 두 정수 $R_s$, $C_s$가 주어진다.

$N+3$번째 줄에 두 정수 $R_e$, $C_e$가 주어진다.

출력

문제의 정답을 $998\,244\,353$으로 나눈 나머지를 출력한다.

제한

  • $1 \le N, M, K \le 100$
  • $1 \le R_s, R_e \le N$
  • $1 \le C_s, C_e \le M$
  • $(R_s, C_s)$와 $(R_e, C_e)$에는 장애물이 없음

서브태스크

번호배점제한
17

$K = 1$

211

$N, M, K \le 5$

335

$N, M, K \le 30$

447

추가 제약 조건 없음

예제 입력 1

3 5 3
#.#.#
.#.#.
#.#.#
2 1
2 5

예제 출력 1

2

은재가 다음과 같은 두 가지의 방법으로 퀸을 움직일 수 있다.

예제 입력 2

8 8 3
#...#...
#.#.#...
.#......
........
....#...
..#.....
##...###
#.....#.
4 5
2 6

예제 출력 2

75

실제로 은재가 백으로 둔 체스 경기 중 하나에서 따온 것이다. 경기 진행은 여기에서 볼 수 있다.

위 예제는 상대의 기권으로 경기가 끝났을 때의 보드 상태이다. 편의상 상대 퀸의 위치를 약점 칸으로 취급한다.

예제 입력 3

3 3 1
###
#.#
###
2 2
2 2

예제 출력 3

0

제자리에 두는 것은 불가능하므로 한 턴 후에 퀸이 $(2, 2)$에 있을 경우의 수는 $0$이다.

[{"problem_id":"27469","problem_lang":"0","title":"\ud038 \uc6c0\uc9c1\uc774\uae30","description":"<p>\uc219\uc81c\ub97c \ud558\uc9c0 \uc54a\uace0 \uccb4\uc2a4\uc640 \uc870\ud569\ub860\uc5d0 \ube60\uc838\uc788\ub358 \uc740\uc7ac\uac00 \uc0dd\ud65c\uad00\uc5d0 \uccb4\uc2a4\ud310\uc744 \ud558\ub098 \ub4e4\uace0 \uc654\ub2e4. \uc774 \uccb4\uc2a4\ud310\uc740 \ud2b9\uc774\ud574\uc11c $8 \\times 8$ \ud615\ud0dc\uc758 \uae30\ubcf8\uc801\uc778 \ud310 \ubfd0\ub9cc \uc544\ub2c8\ub77c $17 \\times 19$ \ud06c\uae30\ub098 \uc2ec\uc9c0\uc5b4 $1 \\times 100$\uc758 \ud06c\uae30\ucc98\ub7fc \uc790\uc720\uc790\uc7ac\ub85c \ud310\uc758 \ud06c\uae30\ub97c \uc870\uc808\ud560 \uc218 \uc788\ub2e4.<\/p>\r\n\r\n<p>\uccb4\uc2a4 \uace0\uc218\uac00 \ub418\uae30 \uc704\ud574\uc11c \uc5f4\uc2ec\ud788 \uccb4\uc2a4\ub97c \ub450\ub358 \uc740\uc7ac\ub294 \uc218\ub9ce\uc740 \ud328\ubc30 \ub05d\uc5d0, \uc0c1\ub300 \uae30\ubb3c\uc758 \uc218\ube44\uac00 \uc57d\ud55c \uc57d\uc810 \uce78\uc744 \ucc3e\uc544\uc11c \uacf5\ub7b5\ud558\ub294 \uac83\uc774 \uc911\uc694\ud558\ub2e4\ub294 \uac78 \uae68\ub2eb\uac8c \ub418\uc5c8\ub2e4. \uc870\ud569\ub860\uc5d0 \ube60\uc9c4 \uc740\uc7ac\ub294 \ud038\uc744 \uc6c0\uc9c1\uc5ec\uc11c \uc0c1\ub300\uc758 \uc57d\uc810 \uce78\uc73c\ub85c \ubcf4\ub0b4\ub294 \ubc29\ubc95\uc774 \uc5bc\ub9c8\ub098 \uc788\uc744\uc9c0 \uad81\uae08\ud574\uc11c \ud558\ub77c\ub294 \uccb4\uc2a4\ub294 \ub450\uc9c0 \uc54a\uace0 \ub2e4\uc74c\uacfc \uac19\uc740 \uc9c8\ubb38\uc744 \ub358\uc9c0\uac8c \ub41c\ub2e4.<\/p>\r\n\r\n<blockquote>\r\n<p><em>\uccb4\uc2a4\uc5d0\uc11c \ud038\uc774 \uac00\uc7a5 \uc911\uc694\ud55c \uae30\ubb3c\uc778\ub370, \uc9c0\uae08 \ub0b4 \ud038\uc774 \uc788\ub294 \uc704\uce58\uc5d0\uc11c \uc815\ud655\ud558\uac8c $K$\ubc88 \uc6c0\uc9c1\uc5ec\uc11c \uc6d0\ud558\ub294 \uc704\uce58\ub85c \ubcf4\ub0b4\ub294 \ubc29\ubc95\uc774 \uc5bc\ub9c8\ub098 \ub420\uae4c?<\/em><\/p>\r\n<\/blockquote>\r\n\r\n<p>\ud604\uc7ac \uccb4\uc2a4\ud310\uc5d0\ub294 \ud038\uc758 \uc774\ub3d9\uc744 \ubc29\ud574\ud558\ub294 \uc7a5\uc560\ubb3c\ub4e4\uacfc \uc740\uc7ac\uc758 \ud038\uc774 \uc788\ub2e4. \uc7a5\uc560\ubb3c\uc774 \uc5c6\uc744 \uc218\ub3c4 \uc788\ub2e4.<\/p>\r\n\r\n<p>\uccb4\uc2a4\ud310\uc740 $N$\ud589 $M$\uc5f4\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\uace0, $r$\ud589 $c$\uc5f4\uc758 \uce78\uc740 $(r, c)$\ub85c \ub098\ud0c0\ub0b8\ub2e4. $(1 \\le r \\le N$; $1 \\le c \\le M)$ \ub610\ud55c, \uccb4\uc2a4\ud310\uc758 \uac01 \uce78\uc740 \uc7a5\uc560\ubb3c\uc774 \uc788\ub294 \uce78\uc774\uac70\ub098 \uc5c6\ub294 \uce78\uc774\ub2e4.<\/p>\r\n\r\n<p>\ucd08\uae30\uc5d0 \ud038\uc758 \uc704\uce58\ub294 $(R_s, C_s)$, \ud038\uc744 \ubcf4\ub0b4\uace0\uc790 \ud558\ub294 \uc704\uce58\ub294 $(R_e, C_e)$\uc774\uba70, \uc544\ub798 \uaddc\uce59\uc5d0 \ub530\ub77c \ud038\uc744 \uc6c0\uc9c1\uc77c \uc218 \uc788\ub2e4.<\/p>\r\n\r\n<ul>\r\n\t<li>\ud604\uc7ac \uce78\uc744 $(R, C)$\ub77c\uace0 \ud560 \ub54c, \ub2e4\uc74c $8$\uac00\uc9c0 \ubc29\ud5a5 \uc911 \ud558\ub098\uc758 \ubc29\ud5a5\uc73c\ub85c \uc6d0\ud558\ub294 \uac70\ub9ac\ub9cc\ud07c \uc6c0\uc9c1\uc77c \uc218 \uc788\ub2e4.\r\n\t<ul>\r\n\t\t<li>\uc704 &mdash; $(R - 1, C), (R - 2, C), (R - 3, C), \\cdots$<\/li>\r\n\t\t<li>\uc544\ub798 &mdash; $(R + 1, C), (R + 2, C), (R + 3, C), \\cdots$<\/li>\r\n\t\t<li>\uc67c\ucabd &mdash; $(R, C - 1), (R, C - 2), (R, C - 3), \\cdots$<\/li>\r\n\t\t<li>\uc624\ub978\ucabd &mdash; $(R, C + 1), (R, C + 2), (R, C + 3), \\cdots$<\/li>\r\n\t\t<li>\uc67c\ucabd \uc704 \ub300\uac01\uc120 &mdash; $(R - 1, C - 1), (R - 2, C - 2), (R - 3, C - 3), \\cdots$<\/li>\r\n\t\t<li>\uc624\ub978\ucabd \uc704 \ub300\uac01\uc120 &mdash; $(R - 1, C + 1), (R - 2, C + 2), (R - 3, C + 3), \\cdots$<\/li>\r\n\t\t<li>\uc67c\ucabd \uc544\ub798 \ub300\uac01\uc120 &mdash; $(R + 1, C - 1), (R + 2, C - 2), (R + 3, C - 3), \\cdots$<\/li>\r\n\t\t<li>\uc624\ub978\ucabd \uc544\ub798 \ub300\uac01\uc120 &mdash; $(R + 1, C + 1), (R + 2, C + 2), (R + 3, C + 3), \\cdots$<\/li>\r\n\t<\/ul>\r\n\t<\/li>\r\n\t<li>\uc815\ud55c \ubc29\ud5a5\uc73c\ub85c \uc6c0\uc9c1\uc77c \ub54c \uc7a5\uc560\ubb3c\uc774 \uc788\ub294 \uce78\uc744 \uc9c0\ub0a0 \uc218 \uc5c6\ub2e4.<\/li>\r\n\t<li>\uccb4\uc2a4\ud310 \ubc16\uc73c\ub85c \ub098\uac00\uac70\ub098 \uc7a5\uc560\ubb3c\uc774 \uc788\ub294 \uce78\uc73c\ub85c \uc6c0\uc9c1\uc77c \uc218 \uc5c6\ub2e4.<\/li>\r\n\t<li><strong>\ub450 \ubc88 \uc5f0\uc18d\uc73c\ub85c \uac19\uc740 \ubc29\ud5a5\uc73c\ub85c \uc6c0\uc9c1\uc77c \uc218 \uc5c6\ub2e4.<\/strong><\/li>\r\n\t<li>\ud038\uc744 \uc81c\uc790\ub9ac\uc5d0 \ub450\uace0 \ud134\uc744 \ub118\uae30\ub294 \uac83\uc740 \ubd88\uac00\ub2a5\ud558\ub2e4.<\/li>\r\n<\/ul>\r\n\r\n<p>\uc740\uc7ac\ub97c \uc704\ud574 \uc740\uc7ac\uac00 \ud038\uc744 $K$\ubc88 \uc6c0\uc9c1\uc5ec\uc11c $(R_e, C_e)$ \uce78\uc73c\ub85c \ubcf4\ub0bc \uc218 \uc788\ub294 \uacbd\uc6b0\uc758 \uc218\ub97c \uad6c\ud558\ub294 \ud504\ub85c\uadf8\ub7a8\uc744 \uc791\uc131\ud574\ubcf4\uc790!<\/p>\r\n","input":"<p>\uccab \ubc88\uc9f8 \uc904\uc5d0 \uc138 \uc815\uc218 $N$, $M$, $K$\uac00 \uc8fc\uc5b4\uc9c4\ub2e4.<\/p>\r\n\r\n<p>$i + 1$\ubc88\uc9f8 \uc904\uc5d0 \ubb38\uc790\uc5f4 $S_i = S_{i1} S_{i2} \\cdots S_{iM}$\uc774 \uc8fc\uc5b4\uc9c4\ub2e4. $(i, j)$ \uce78\uc5d0 \uc7a5\uc560\ubb3c\uc774 \uc788\uc73c\uba74 $S_{ij}=$<code><span style=\"color:#e74c3c;\">#<\/span><\/code>\uc774\uace0, $(i, j)$ \uce78\uc5d0 \uc7a5\uc560\ubb3c\uc774 \uc5c6\uc73c\uba74 $S_{ij}=$<code><span style=\"color:#e74c3c;\">.<\/span><\/code>\uc774\ub2e4. $(1 \\le i \\le N$; $1 \\le j \\le M)$<\/p>\r\n\r\n<p>$N+2$\ubc88\uc9f8 \uc904\uc5d0 \ub450 \uc815\uc218 $R_s$, $C_s$\uac00 \uc8fc\uc5b4\uc9c4\ub2e4.<\/p>\r\n\r\n<p>$N+3$\ubc88\uc9f8 \uc904\uc5d0 \ub450 \uc815\uc218 $R_e$, $C_e$\uac00 \uc8fc\uc5b4\uc9c4\ub2e4.<\/p>\r\n","output":"<p>\ubb38\uc81c\uc758 \uc815\ub2f5\uc744 $998\\,244\\,353$\uc73c\ub85c \ub098\ub208 \ub098\uba38\uc9c0\ub97c \ucd9c\ub825\ud55c\ub2e4.<\/p>\r\n","hint":"","original":"1","html_title":"0","problem_lang_tcode":"Korean","limit":"<ul>\r\n\t<li>$1 \\le N, M, K \\le 100$<\/li>\r\n\t<li>$1 \\le R_s, R_e \\le N$<\/li>\r\n\t<li>$1 \\le C_s, C_e \\le M$<\/li>\r\n\t<li>$(R_s, C_s)$\uc640 $(R_e, C_e)$\uc5d0\ub294 \uc7a5\uc560\ubb3c\uc774 \uc5c6\uc74c<\/li>\r\n<\/ul>\r\n","subtask1":"<p>$K = 1$<\/p>\r\n","subtask2":"<p>$N, M, K \\le 5$<\/p>\r\n","subtask3":"<p>$N, M, K \\le 30$<\/p>\r\n","subtask4":"<p>\ucd94\uac00 \uc81c\uc57d \uc870\uac74 \uc5c6\uc74c<\/p>\r\n","sample_explain_1":"<p>\uc740\uc7ac\uac00 \ub2e4\uc74c\uacfc \uac19\uc740 \ub450 \uac00\uc9c0\uc758 \ubc29\ubc95\uc73c\ub85c \ud038\uc744 \uc6c0\uc9c1\uc77c \uc218 \uc788\ub2e4.<\/p>\r\n\r\n<p style=\"text-align: center;\"><img alt=\"\" src=\"https:\/\/upload.acmicpc.net\/679a63e2-1147-4a07-b4f4-28b319dfd473\/-\/preview\/\" style=\"height: 526px; width: 450px;\" \/><\/p>\r\n","sample_explain_2":"<p>\uc2e4\uc81c\ub85c \uc740\uc7ac\uac00 \ubc31\uc73c\ub85c \ub454 \uccb4\uc2a4 \uacbd\uae30 \uc911 \ud558\ub098\uc5d0\uc11c \ub530\uc628 \uac83\uc774\ub2e4. \uacbd\uae30 \uc9c4\ud589\uc740 <a href=\"https:\/\/lichess.org\/c539HUh7\/white\">\uc5ec\uae30<\/a>\uc5d0\uc11c \ubcfc \uc218 \uc788\ub2e4.<\/p>\r\n\r\n<p>\uc704 \uc608\uc81c\ub294 \uc0c1\ub300\uc758 \uae30\uad8c\uc73c\ub85c \uacbd\uae30\uac00 \ub05d\ub0ac\uc744 \ub54c\uc758 \ubcf4\ub4dc \uc0c1\ud0dc\uc774\ub2e4. \ud3b8\uc758\uc0c1 \uc0c1\ub300 \ud038\uc758 \uc704\uce58\ub97c \uc57d\uc810 \uce78\uc73c\ub85c \ucde8\uae09\ud55c\ub2e4.<\/p>\r\n","sample_explain_3":"<p>\uc81c\uc790\ub9ac\uc5d0 \ub450\ub294 \uac83\uc740 \ubd88\uac00\ub2a5\ud558\ubbc0\ub85c&nbsp;\ud55c \ud134 \ud6c4\uc5d0 \ud038\uc774&nbsp;$(2, 2)$\uc5d0 \uc788\uc744 \uacbd\uc6b0\uc758 \uc218\ub294 $0$\uc774\ub2e4.<\/p>\r\n"},{"problem_id":"27469","problem_lang":"1","title":"Moving the Queen","description":"<p>Eunjae, who loves combinatorics and playing chess instead of doing homework,&nbsp;brought a chessboard to the dormitory. This chessboard is special, so its size can be changed such as&nbsp;$17 \\times 19$ or&nbsp;$1 \\times 100$ instead of ordinary $8 \\times 8$.<\/p>\r\n\r\n<p>Eunjae&nbsp;played chess hard to become a chess master. One day,&nbsp;after numerous losses, he&nbsp;realized that it is&nbsp;important to find and attack the weak square&nbsp;of the opponent&#39;s property.&nbsp;Eunjae also loves combinatorics, so he&nbsp;wonders how many ways he can move&nbsp;his queen&nbsp;to the opponent&#39;s weak spot.<\/p>\r\n\r\n<blockquote>\r\n<p><em>The Queen&nbsp;is the most important piece in the game of chess.&nbsp;How many ways can I move my queen to the place where I want?<\/em><\/p>\r\n<\/blockquote>\r\n\r\n<p>On the chessboard, there is a queen and&nbsp;some obstacles blocking the queen&#39;s move. There could be no obstacles on the board.<\/p>\r\n\r\n<p>The chessboard consists of $N$ rows and $M$ columns, and the square on row $r$ and column $c$ is represented as $(r, c)$. Also, each of the squares is either has an obstacle or not.<\/p>\r\n\r\n<p>The starting point and the goal point chosen by Eunjae&#39;s&nbsp;friends&nbsp;are&nbsp;$(R_s, C_s)$ and $(R_e, C_e)$, respectively. Eunjae can move the queen by the following rules.<\/p>\r\n\r\n<ul>\r\n\t<li>If the current square is $(R, C)$, you can move the queen as far as you want in one of the following $8$ directions.\r\n\t<ul>\r\n\t\t<li>Up &mdash;&nbsp;$(R - 1, C), (R - 2, C), (R - 3, C), \\cdots$<\/li>\r\n\t\t<li>Down &mdash;&nbsp;$(R + 1, C), (R + 2, C), (R + 3, C), \\cdots$<\/li>\r\n\t\t<li>Left &mdash;&nbsp;$(R, C - 1), (R, C - 2), (R, C - 3), \\cdots$<\/li>\r\n\t\t<li>Right &mdash;&nbsp;$(R, C + 1), (R, C + 2), (R, C + 3), \\cdots$<\/li>\r\n\t\t<li>Upper Left &mdash;&nbsp;$(R - 1, C - 1), (R - 2, C - 2), (R - 3, C - 3), \\cdots$<\/li>\r\n\t\t<li>Upper Right &mdash;&nbsp;$(R - 1, C + 1), (R - 2, C + 2), (R - 3, C + 3), \\cdots$<\/li>\r\n\t\t<li>Lower Left &mdash;&nbsp;$(R + 1, C - 1), (R + 2, C - 2), (R + 3, C - 3), \\cdots$<\/li>\r\n\t\t<li>Lower Right &mdash;&nbsp;$(R + 1, C + 1), (R + 2, C + 2), (R + 3, C + 3), \\cdots$<\/li>\r\n\t<\/ul>\r\n\t<\/li>\r\n\t<li>The queen cannot pass through&nbsp;squares with obstacles when you move the queen in your chosen direction.<\/li>\r\n\t<li>Moving outside&nbsp;the chessboard or to a square with an obstacle is forbidden.<\/li>\r\n\t<li><strong>The queen cannot move in the same direction twice in a row.<\/strong><\/li>\r\n\t<li>You cannot keep the queen in place or skip the turn.<\/li>\r\n<\/ul>\r\n\r\n<p>For&nbsp;Eunjae,&nbsp;find out&nbsp;the number of&nbsp;ways he can move the queen to&nbsp;the square $(R_e, C_e)$ after&nbsp;$K$ turns.<\/p>\r\n","input":"<p>The first line contains three integers $N$, $M$, and $K$.<\/p>\r\n\r\n<p>The $i+1$-th line&nbsp;contains a string&nbsp;$S_i = S_{i1} S_{i2} \\cdots S_{iM}$. If the&nbsp;square $(i, j)$ has an obstacle,&nbsp;$S_{ij}=$<code><span style=\"color:#e74c3c;\">#<\/span><\/code>. And if the&nbsp;square $(i, j)$ has no&nbsp;obstacles, $S_{ij}=$<code><span style=\"color:#e74c3c;\">.<\/span><\/code>.&nbsp;$(1 \\le i \\le N$; $1 \\le j \\le M)$<\/p>\r\n\r\n<p>The $N+2$-th line contains two integers $R_s$ and $C_s$.<\/p>\r\n\r\n<p>The $N+3$-th line contains two integers $R_e$ and $C_e$.<\/p>\r\n","output":"<p>Print the answer, modulo $998\\,244\\,353$.<\/p>\r\n","hint":"","original":"0","html_title":"0","problem_lang_tcode":"English","limit":"<ul>\r\n\t<li>$1 \\le N, M, K \\le 100$<\/li>\r\n\t<li>$1 \\le R_s, R_e \\le N$<\/li>\r\n\t<li>$1 \\le C_s, C_e \\le M$<\/li>\r\n\t<li>There are no obstacles on squares $(R_s, C_s)$ and&nbsp;$(R_e, C_e)$<\/li>\r\n<\/ul>\r\n","subtask1":"<p>$K = 1$<\/p>\r\n","subtask2":"<p>$N, M, K \\le 5$<\/p>\r\n","subtask3":"<p>$N, M, K \\le 30$<\/p>\r\n","subtask4":"<p>No additional constraints<\/p>\r\n","sample_explain_1":"<p>Eunjae can move the queen in the following two ways.<\/p>\r\n\r\n<p style=\"text-align: center;\"><img alt=\"\" src=\"https:\/\/upload.acmicpc.net\/5e64b20b-7a15-4af2-b0dd-ef6074e9df87\/-\/preview\/\" style=\"height: 526px; width: 450px;\" \/><\/p>\r\n","sample_explain_2":"<p>It was taken from one of Eunjae&#39;s chess games, played by white. You can see the game <a href=\"http:\/\/lichess.org\/c539HUh7\/white\">here<\/a>.<\/p>\r\n\r\n<p>This example represents the board when the opponent resigns. For convenience, the position of the opponent queen is treated as a weak square.<\/p>\r\n","sample_explain_3":"<p>Since you cannot keep the queen in place, the number of ways the queen is placed on the square $(2, 2)$ after one&nbsp;turn is $0$.<\/p>\r\n"}]

채점 및 기타 정보

  • 예제는 채점하지 않는다.