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문제

크기가 n인 정수 배열 X가 있고, 0으로 초기화 되어있다. 이 배열에 연산을 q번 적용하려고 한다.

배열에 적용할 수 있는 연산은 아래와 같이 두 종류가 있다.

  • 덧셈: 모든 X[i]에 i를 더한다. (0 ≤ i < n)
  • 뒤집기: 뒤집기 연산을 사용하려면 i ≤ j를 만족하는 i와 j가 필요하다. X[i]부터 X[j]까지 원소의 순서를 모두 뒤집는다. 즉, X[i], X[i+1], ..., X[j-1], X[j]의 순서가 뒤집힌다.

예를 들어, n = 6이고, 아래와 같이 연산을 다섯 번 적용한 경우를 살펴보자.

  1. 덧셈
  2. 덧셈
  3. 뒤집기 i = 0, j = 4
  4. 덧셈
  5. 뒤집기 i = 2, j = 5

가장 처음에 X는 [0, 0, 0, 0, 0, 0]이다. 각 연산을 사용한 결과는 아래와 같다.

  1. [0, 1, 2, 3, 4, 5]
  2. [0, 2, 4, 6, 8, 10]
  3. [8, 6, 4, 2, 0, 10]
  4. [8, 7, 6, 5, 4, 15]
  5. [8, 7, 15, 4, 5, 6]

배열의 크기 n과 적용한 연산의 수 q, 그리고 적용한 연산이 주어졌을 때, 배열 X에 담겨있는 수를 구해보려고 한다.

크기가 m인 배열 Y가 주어졌을 때, 모든 연산을 적용한 후의 X[Y[i]] 값을 구해보자.

입력

첫째 줄에 세 정수 n, q, m이 주어진다. (1 ≤ n ≤ 1,000,000, 0 ≤ q ≤ 10,000, 1 ≤ m ≤ 5,000).

다음 q개의 줄에 결처 연산이 한 줄에 하나씩 주어진다. 각 줄은 'a'나 'r'로 시작한다. 이 대, 'a'는 덧셈 연산을 나타내고, 'r'은 뒤집기 연산을 나타낸다. 'r'이 주어진 경우, 그 뒤에 공백으로 구분된 두 정수 i, j가 주어진다. (0 ≤ i ≤ j < n)

마지막 줄에는 배열 Y를 나타내는 m개의 정수가 순서대로 주어진다. (0 ≤ Y[i] < n)

출력

총 m개의 줄에 X[Y[i]]값을 순서대로 한 줄에 하나씩 출력한다.

서브태스크 1 (5점)

  • 1 ≤ n, q, m ≤ 200

서브태스크 2 (6점)

  • 1 ≤ n ≤ 1,000,000
  • 0 ≤ q ≤ 10,000
  • 1 ≤ m ≤ 5,000

예제 입력 1

6 5 6
a
a
r 0 4
a
r 2 5
0 1 2 3 4 5

예제 출력 1

8 
7 
15 
4 
5 
6

문제에서 예시로 사용한 예제이다.

예제 입력 2

3 0 3
2 1 0

예제 출력 2

0
0
0

예제 입력 3

7 6 7
a
a
r 0 3
a
a
r 3 5
0 1 2 3 4 5 6

예제 출력 3

6
6
6
20
16
6
24

예제 입력 4

2 7 2
a
r 0 1
a
a
r 0 1
a
r 0 1
0 1

예제 출력 4

2
2

예제 입력 5

2 10 2
a
r 0 1
a
a
r 0 1
a
r 0 1
r 0 0
r 1 1
r 0 1
0 1

예제 출력 5

2
2
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X[i]\ubd80\ud130 X[j]\uae4c\uc9c0 \uc6d0\uc18c\uc758 \uc21c\uc11c\ub97c \ubaa8\ub450 \ub4a4\uc9d1\ub294\ub2e4. \uc989, X[i], X[i+1], ..., X[j-1], X[j]\uc758 \uc21c\uc11c\uac00 \ub4a4\uc9d1\ud78c\ub2e4.<\/li>\r\n<\/ul>\r\n\r\n<p>\uc608\ub97c \ub4e4\uc5b4, n = 6\uc774\uace0, \uc544\ub798\uc640 \uac19\uc774 \uc5f0\uc0b0\uc744 \ub2e4\uc12f \ubc88 \uc801\uc6a9\ud55c \uacbd\uc6b0\ub97c \uc0b4\ud3b4\ubcf4\uc790.<\/p>\r\n\r\n<ol>\r\n\t<li>\ub367\uc148<\/li>\r\n\t<li>\ub367\uc148<\/li>\r\n\t<li>\ub4a4\uc9d1\uae30 i = 0, j = 4<\/li>\r\n\t<li>\ub367\uc148<\/li>\r\n\t<li>\ub4a4\uc9d1\uae30 i = 2, j = 5<\/li>\r\n<\/ol>\r\n\r\n<p>\uac00\uc7a5 \ucc98\uc74c\uc5d0 X\ub294 [0, 0, 0, 0, 0, 0]\uc774\ub2e4. \uac01 \uc5f0\uc0b0\uc744 \uc0ac\uc6a9\ud55c \uacb0\uacfc\ub294 \uc544\ub798\uc640 \uac19\ub2e4.<\/p>\r\n\r\n<ol>\r\n\t<li>[0, 1, 2, 3, 4, 5]<\/li>\r\n\t<li>[0, 2, 4, 6, 8, 10]<\/li>\r\n\t<li>[8, 6, 4, 2, 0, 10]<\/li>\r\n\t<li>[8, 7, 6, 5, 4, 15]<\/li>\r\n\t<li>[8, 7, 15, 4, 5, 6]<\/li>\r\n<\/ol>\r\n\r\n<p>\ubc30\uc5f4\uc758 \ud06c\uae30 n\uacfc \uc801\uc6a9\ud55c \uc5f0\uc0b0\uc758 \uc218 q, \uadf8\ub9ac\uace0 \uc801\uc6a9\ud55c \uc5f0\uc0b0\uc774 \uc8fc\uc5b4\uc84c\uc744 \ub54c, \ubc30\uc5f4 X\uc5d0 \ub2f4\uaca8\uc788\ub294 \uc218\ub97c \uad6c\ud574\ubcf4\ub824\uace0 \ud55c\ub2e4.<\/p>\r\n\r\n<p>\ud06c\uae30\uac00 m\uc778 \ubc30\uc5f4 Y\uac00 \uc8fc\uc5b4\uc84c\uc744 \ub54c, \ubaa8\ub4e0 \uc5f0\uc0b0\uc744 \uc801\uc6a9\ud55c \ud6c4\uc758 X[Y[i]] \uac12\uc744 \uad6c\ud574\ubcf4\uc790.<\/p>\r\n","input":"<p>\uccab\uc9f8 \uc904\uc5d0 \uc138 \uc815\uc218 n, q, m\uc774 \uc8fc\uc5b4\uc9c4\ub2e4. (1 &le; n &le; 1,000,000, 0 &le; q &le; 10,000, 1 &le; m &le; 5,000).<\/p>\r\n\r\n<p>\ub2e4\uc74c q\uac1c\uc758 \uc904\uc5d0 \uacb0\ucc98 \uc5f0\uc0b0\uc774 \ud55c \uc904\uc5d0 \ud558\ub098\uc529 \uc8fc\uc5b4\uc9c4\ub2e4. \uac01 \uc904\uc740 &#39;a&#39;\ub098 &#39;r&#39;\ub85c \uc2dc\uc791\ud55c\ub2e4. \uc774 \ub300, &#39;a&#39;\ub294 \ub367\uc148 \uc5f0\uc0b0\uc744 \ub098\ud0c0\ub0b4\uace0, &#39;r&#39;\uc740 \ub4a4\uc9d1\uae30 \uc5f0\uc0b0\uc744 \ub098\ud0c0\ub0b8\ub2e4. &#39;r&#39;\uc774 \uc8fc\uc5b4\uc9c4 \uacbd\uc6b0, \uadf8 \ub4a4\uc5d0 \uacf5\ubc31\uc73c\ub85c \uad6c\ubd84\ub41c \ub450 \uc815\uc218 i, j\uac00 \uc8fc\uc5b4\uc9c4\ub2e4. (0 &le; i &le; j &lt; n)<\/p>\r\n\r\n<p>\ub9c8\uc9c0\ub9c9 \uc904\uc5d0\ub294 \ubc30\uc5f4 Y\ub97c \ub098\ud0c0\ub0b4\ub294 m\uac1c\uc758 \uc815\uc218\uac00 \uc21c\uc11c\ub300\ub85c \uc8fc\uc5b4\uc9c4\ub2e4. (0 &le; Y[i] &lt; n)<\/p>\r\n","output":"<p>\ucd1d m\uac1c\uc758 \uc904\uc5d0 X[Y[i]]\uac12\uc744 \uc21c\uc11c\ub300\ub85c \ud55c \uc904\uc5d0 \ud558\ub098\uc529 \ucd9c\ub825\ud55c\ub2e4.<\/p>\r\n","hint":"","original":"1","problem_lang_code":"\ud55c\uad6d\uc5b4","subtask1":"<ul>\r\n\t<li>1 &le; n, q, m &le; 200<\/li>\r\n<\/ul>\r\n","subtask2":"<ul>\r\n\t<li>1 &le; n &le; 1,000,000<\/li>\r\n\t<li>0 &le; q &le;&nbsp;10,000<\/li>\r\n\t<li>1 &le; m &le; 5,000<\/li>\r\n<\/ul>\r\n","sample_explain_1":"<p>\ubb38\uc81c\uc5d0\uc11c \uc608\uc2dc\ub85c \uc0ac\uc6a9\ud55c \uc608\uc81c\uc774\ub2e4.<\/p>\r\n"},{"problem_id":"15932","problem_lang":"1","title":"Operations on Array of Integers","description":"<p>You are going to apply a few operations on an array of integers X.<\/p>\r\n\r\n<p>The array X contains n integers, which are initialized to 0&#39;s at the beginning. You are going to apply exactly q operations to X.<\/p>\r\n\r\n<p>There are precisely two kinds of operations: addition and reversal. When you apply the addition operation to X, you are going to add value i to X[i] (so X[i] becomes its old value plus i) where i is between 0 and n-1, inclusive (we use 0-baed index). When you apply the reversal operation to X, you are also given two indices (i, j) where i &le; j such that you are going to reverse the order of elements X[i], X[i+1], ..., X[j-1], X[j].<\/p>\r\n\r\n<p>For instance, suppose that n = 6, and you apply the following five operations in order:<\/p>\r\n\r\n<ol>\r\n\t<li>addition<\/li>\r\n\t<li>addition<\/li>\r\n\t<li>reversal i=0, j=4<\/li>\r\n\t<li>addition<\/li>\r\n\t<li>reversal i=2, j=5<\/li>\r\n<\/ol>\r\n\r\n<p>In this example, X begins as [0, 0, 0, 0, 0, 0].<\/p>\r\n\r\n<ol>\r\n\t<li>After the first operation, X becomes [0, 1, 2, 3, 4, 5].<\/li>\r\n\t<li>After the second operation, X becomes [0, 2, 4, 6, 8, 10].<\/li>\r\n\t<li>After the third operation, X becomes [8, 6, 4, 2, 0, 10].<\/li>\r\n\t<li>After the fourth operation, X becomes [8, 7, 6, 5, 4, 15].<\/li>\r\n\t<li>After the fifth (last) operation, X becomes [8, 7, 15, 4, 5, 6].<\/li>\r\n<\/ol>\r\n\r\n<p>You are wondering about the values of certain elements of X, after you apply all of the q operations. Specifically, you are given an integer m and an array of indices (containing m elements) -- let&#39;s call this array of indices Y. You want to know X[Y[i]] for all i between 0 and m-1, after you finish applying the operations.<\/p>\r\n","input":"<p>The first line contains three integers n, q, and m (1 &le;&nbsp;n &le; 1,000,000, 0 &le; q &le; 10,000, 1 &le; m &le; 5,000). The following q lines describe operations, one operation per line. In each line, the line contains either &#39;a&#39; (one character) or &#39;r&#39;, i, and j where i and j are indices of X (integers between 0 and n-1, inclusive) and i &le;&nbsp;j. Then the last line contains m integers (the array Y) that are indices of X (these indices are between 0 and n-1, inclusive).<\/p>\r\n","output":"<p>You must output exactly m lines where each line contains the value X[Y[i]] after you apply the q operations.<\/p>\r\n","hint":"","original":"0","problem_lang_code":"\uc601\uc5b4","subtask1":"<ul>\r\n\t<li>1 &le; n, q, m &le; 200<\/li>\r\n<\/ul>\r\n","subtask2":"<ul>\r\n\t<li>1 &le; n &le; 1,000,000<\/li>\r\n\t<li>0 &le; q &le;&nbsp;10,000<\/li>\r\n\t<li>1 &le; m &le; 5,000<\/li>\r\n<\/ul>\r\n","sample_explain_1":"<p>This example was discussed in the problem statement.<\/p>\r\n"}]

출처

  • 문제를 만든 사람: haden