시간 제한메모리 제한제출정답맞힌 사람정답 비율
1 초 128 MB6021097222.086%

문제

단어가 N개 있는 데이터베이스가 있다.

이 데이터베이스에서 어떤 단어를 찾을 때 사용하는 알고리즘은 상당히 원시적이다.

이 알고리즘은 단어 W와 데이터베이스에 있는 단어를 하나씩 비교한다. 단어를 비교할 때는, 각 단어의 가장 앞에서부터 다른 문자가 나오거나, 한 단어의 끝이 나올 때 까지 하나씩 비교한다. 만약, 단어 W를 찾으면 이 알고리즘은 그 즉시 종료된다.

단어의 길이는 단어를 검색하기 전에 알 수 없으므로, 마지막 글자도 비교를 해야 단어가 끝났다는 것을 알게 된다. 즉, abc와 abcd가 있을 때, abc의 4번째 글자와 abcd의 4번째 글자를 비교할 때 단어가 서로 다르다는 것을 알 수 있는 것이다. 마찬가지로 단어가 같은 것도 마지막 글자 다음 글자를 비교해야 알 수 있다. abc와 abc가 있을 때, abc의 4번째 글자와 abc의 4번째 글자가 모두 없는 것으로 같으므로 단어를 찾았다는 뜻이다.

단어 목록이 주어지고, 검색하려고 하는 단어가 주어졌을 때, 몇 번 비교만에 단어를 찾을 수 있는지 구하는 프로그램을 작성하시오.

입력

첫째 줄에 단어의 개수 N이 주어진다. (1 ≤ N ≤ 30,000)

다음 N개의 줄에는 데이터베이스에 있는 단어가 주어진다. 단어를 검색할 때, 입력으로 주어진 단어 순서를 그대로 사용해야 한다. 또한, 모든 단어는 다르다.

다음 줄에는 검색하려고 하는 단어의 개수 Q가 주어진다. (1 ≤ Q ≤ 30,000)

다음 Q개 줄에는 검색하려고 하는 단어가 주어진다.

모든 단어는 알파벳 소문자로 이루어져 있고, 길이는 30보다 작다.

출력

Q개 줄에 걸쳐, 각 단어를 검색하는데 필요한 비교의 수를 출력한다.

예제 입력 1

5
hobotnica
robot
hobi
hobit
robi
4
robi
hobi
hobit
rakija

예제 출력 1

12
10
16
7

예제 입력 2

8
majmunica
majmun
majka
malina
malinska
malo
maleni
malesnica
3
krampus
malnar
majmun

예제 출력 2

8
29
14

krampus를 검색하려면 데이터베이스에 있는 단어의 첫 번째 글자만 비교하면 되므로 8번만 비교하면 된다. 

malnar를 검색하려면, 처음 3단어는 3번, 뒤의 5단어는 4번 검색하면 되므로 29번 비교하면 된다.

majmun을 검색하려면, 14번 검색하면 된다. 첫 번째 단어 "majmunica"와 7번 비교를 하고, 길이가 다르므로 다음 단어와 비교한다. 다음 단어에서 7번 비교를 하면 되므로 14번이다. 단어를 찾은 후에는 더이상 검색을 하지 않으므로 더 검색할 단어는 없다.

[{"problem_id":"2990","problem_lang":"0","title":"\ub2e8\uc5b4 \uac80\uc0c9","description":"<p>\ub2e8\uc5b4\uac00 N\uac1c \uc788\ub294 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uac00 \uc788\ub2e4.<\/p>\r\n\r\n<p>\uc774 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0\uc11c \uc5b4\ub5a4 \ub2e8\uc5b4\ub97c \ucc3e\uc744 \ub54c \uc0ac\uc6a9\ud558\ub294 \uc54c\uace0\ub9ac\uc998\uc740 \uc0c1\ub2f9\ud788 \uc6d0\uc2dc\uc801\uc774\ub2e4.<\/p>\r\n\r\n<p>\uc774 \uc54c\uace0\ub9ac\uc998\uc740 \ub2e8\uc5b4 W\uc640 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0 \uc788\ub294 \ub2e8\uc5b4\ub97c \ud558\ub098\uc529 \ube44\uad50\ud55c\ub2e4. \ub2e8\uc5b4\ub97c \ube44\uad50\ud560 \ub54c\ub294, \uac01 \ub2e8\uc5b4\uc758 \uac00\uc7a5 \uc55e\uc5d0\uc11c\ubd80\ud130 \ub2e4\ub978 \ubb38\uc790\uac00 \ub098\uc624\uac70\ub098, \ud55c \ub2e8\uc5b4\uc758 \ub05d\uc774 \ub098\uc62c \ub54c \uae4c\uc9c0 \ud558\ub098\uc529 \ube44\uad50\ud55c\ub2e4. \ub9cc\uc57d, \ub2e8\uc5b4 W\ub97c \ucc3e\uc73c\uba74 \uc774 \uc54c\uace0\ub9ac\uc998\uc740 \uadf8 \uc989\uc2dc \uc885\ub8cc\ub41c\ub2e4.<\/p>\r\n\r\n<p>\ub2e8\uc5b4\uc758 \uae38\uc774\ub294 \ub2e8\uc5b4\ub97c \uac80\uc0c9\ud558\uae30 \uc804\uc5d0 \uc54c \uc218 \uc5c6\uc73c\ubbc0\ub85c, \ub9c8\uc9c0\ub9c9 \uae00\uc790\ub3c4 \ube44\uad50\ub97c \ud574\uc57c \ub2e8\uc5b4\uac00 \ub05d\ub0ac\ub2e4\ub294 \uac83\uc744 \uc54c\uac8c \ub41c\ub2e4. \uc989, abc\uc640 abcd\uac00 \uc788\uc744 \ub54c, abc\uc758 4\ubc88\uc9f8 \uae00\uc790\uc640 abcd\uc758 4\ubc88\uc9f8 \uae00\uc790\ub97c \ube44\uad50\ud560 \ub54c \ub2e8\uc5b4\uac00 \uc11c\ub85c \ub2e4\ub974\ub2e4\ub294 \uac83\uc744 \uc54c \uc218 \uc788\ub294 \uac83\uc774\ub2e4. \ub9c8\ucc2c\uac00\uc9c0\ub85c \ub2e8\uc5b4\uac00 \uac19\uc740 \uac83\ub3c4 \ub9c8\uc9c0\ub9c9 \uae00\uc790 \ub2e4\uc74c \uae00\uc790\ub97c \ube44\uad50\ud574\uc57c \uc54c \uc218 \uc788\ub2e4. abc\uc640 abc\uac00 \uc788\uc744 \ub54c, abc\uc758 4\ubc88\uc9f8 \uae00\uc790\uc640 abc\uc758 4\ubc88\uc9f8 \uae00\uc790\uac00 \ubaa8\ub450 \uc5c6\ub294 \uac83\uc73c\ub85c \uac19\uc73c\ubbc0\ub85c \ub2e8\uc5b4\ub97c \ucc3e\uc558\ub2e4\ub294 \ub73b\uc774\ub2e4.<\/p>\r\n\r\n<p>\ub2e8\uc5b4 \ubaa9\ub85d\uc774 \uc8fc\uc5b4\uc9c0\uace0, \uac80\uc0c9\ud558\ub824\uace0 \ud558\ub294 \ub2e8\uc5b4\uac00 \uc8fc\uc5b4\uc84c\uc744 \ub54c, \uba87 \ubc88 \ube44\uad50\ub9cc\uc5d0 \ub2e8\uc5b4\ub97c \ucc3e\uc744 \uc218 \uc788\ub294\uc9c0 \uad6c\ud558\ub294 \ud504\ub85c\uadf8\ub7a8\uc744 \uc791\uc131\ud558\uc2dc\uc624.<\/p>\r\n","input":"<p>\uccab\uc9f8 \uc904\uc5d0 \ub2e8\uc5b4\uc758 \uac1c\uc218 N\uc774 \uc8fc\uc5b4\uc9c4\ub2e4. (1 &le; N &le; 30,000)<\/p>\r\n\r\n<p>\ub2e4\uc74c N\uac1c\uc758 \uc904\uc5d0\ub294 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0 \uc788\ub294 \ub2e8\uc5b4\uac00 \uc8fc\uc5b4\uc9c4\ub2e4. \ub2e8\uc5b4\ub97c \uac80\uc0c9\ud560 \ub54c, \uc785\ub825\uc73c\ub85c \uc8fc\uc5b4\uc9c4 \ub2e8\uc5b4 \uc21c\uc11c\ub97c \uadf8\ub300\ub85c \uc0ac\uc6a9\ud574\uc57c \ud55c\ub2e4. \ub610\ud55c, \ubaa8\ub4e0 \ub2e8\uc5b4\ub294 \ub2e4\ub974\ub2e4.<\/p>\r\n\r\n<p>\ub2e4\uc74c \uc904\uc5d0\ub294 \uac80\uc0c9\ud558\ub824\uace0 \ud558\ub294 \ub2e8\uc5b4\uc758 \uac1c\uc218 Q\uac00 \uc8fc\uc5b4\uc9c4\ub2e4. (1 &le; Q &le; 30,000)<\/p>\r\n\r\n<p>\ub2e4\uc74c Q\uac1c \uc904\uc5d0\ub294 \uac80\uc0c9\ud558\ub824\uace0 \ud558\ub294 \ub2e8\uc5b4\uac00 \uc8fc\uc5b4\uc9c4\ub2e4.<\/p>\r\n\r\n<p>\ubaa8\ub4e0 \ub2e8\uc5b4\ub294 \uc54c\ud30c\ubcb3 \uc18c\ubb38\uc790\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\uace0, \uae38\uc774\ub294 30\ubcf4\ub2e4 \uc791\ub2e4.<\/p>\r\n","output":"<p>Q\uac1c \uc904\uc5d0 \uac78\uccd0, \uac01 \ub2e8\uc5b4\ub97c \uac80\uc0c9\ud558\ub294\ub370 \ud544\uc694\ud55c \ube44\uad50\uc758 \uc218\ub97c \ucd9c\ub825\ud55c\ub2e4.<\/p>\r\n","hint":"","original":"0","html_title":"0","problem_lang_tcode":"Korean","sample_explain_2":"<p>krampus\ub97c \uac80\uc0c9\ud558\ub824\uba74 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0 \uc788\ub294 \ub2e8\uc5b4\uc758 \uccab \ubc88\uc9f8 \uae00\uc790\ub9cc \ube44\uad50\ud558\uba74 \ub418\ubbc0\ub85c 8\ubc88\ub9cc \ube44\uad50\ud558\uba74 \ub41c\ub2e4.&nbsp;<\/p>\r\n\r\n<p>malnar\ub97c \uac80\uc0c9\ud558\ub824\uba74, \ucc98\uc74c 3\ub2e8\uc5b4\ub294 3\ubc88, \ub4a4\uc758 5\ub2e8\uc5b4\ub294 4\ubc88 \uac80\uc0c9\ud558\uba74 \ub418\ubbc0\ub85c 29\ubc88 \ube44\uad50\ud558\uba74 \ub41c\ub2e4.<\/p>\r\n\r\n<p>majmun\uc744 \uac80\uc0c9\ud558\ub824\uba74, 14\ubc88 \uac80\uc0c9\ud558\uba74 \ub41c\ub2e4. \uccab \ubc88\uc9f8 \ub2e8\uc5b4 &quot;majmunica&quot;\uc640 7\ubc88 \ube44\uad50\ub97c \ud558\uace0, \uae38\uc774\uac00 \ub2e4\ub974\ubbc0\ub85c \ub2e4\uc74c \ub2e8\uc5b4\uc640 \ube44\uad50\ud55c\ub2e4. \ub2e4\uc74c \ub2e8\uc5b4\uc5d0\uc11c 7\ubc88 \ube44\uad50\ub97c \ud558\uba74 \ub418\ubbc0\ub85c 14\ubc88\uc774\ub2e4. \ub2e8\uc5b4\ub97c \ucc3e\uc740 \ud6c4\uc5d0\ub294 \ub354\uc774\uc0c1 \uac80\uc0c9\uc744 \ud558\uc9c0 \uc54a\uc73c\ubbc0\ub85c \ub354 \uac80\uc0c9\ud560 \ub2e8\uc5b4\ub294 \uc5c6\ub2e4.<\/p>\r\n"},{"problem_id":"2990","problem_lang":"1","title":"BAZA","description":"<p>The longest common prefix of two words is the longest word that both words start with. For example, the longest common prefix of the words &quot;identity&quot; and &quot;idealistic&quot; is the word &quot;ide&quot;.&nbsp;<\/p>\r\n\r\n<p>A database contains N words.&nbsp;<\/p>\r\n\r\n<p>The algorithm to search for a query word W in the database is primitive. It compares the word W one by one with each word in the database. Two words are compared letter by letter until a letter in which they differ is found or until the end of one of the words is reached (it is then established either that the words are equal or that one is longer than the other). When the algorithm finds the word W in the database, it terminates.&nbsp;<\/p>\r\n\r\n<p>Analysing the algorithm shows that the number of steps needed to find a word W is equal to the number of words W is compared to, plus the sum of the lengths of the longest common prefixes of W and each of the words it was compared to.&nbsp;<\/p>\r\n\r\n<p>Write a program that calculates the number of steps the algorithm uses to find each of the Q query words.&nbsp;<\/p>\r\n","input":"<p>The first line contains an integer N (1 &le; N &le; 30000), the number of words in the database.&nbsp;<\/p>\r\n\r\n<p>Each of the following N lines contains a single word from the database. The words are given in the order the algorithm compares them to a query word. All words in the database will be distinct.&nbsp;<\/p>\r\n\r\n<p>The following line contains an integer Q (1 &le; Q &le; 30000), the number of words searched for.&nbsp;<\/p>\r\n\r\n<p>Each of the following Q lines contains a single query word.&nbsp;<\/p>\r\n\r\n<p>All words in the input will be strings of less than 30 lowercase letters of the English alphabet.&nbsp;<\/p>\r\n","output":"<p>Output one integer per line for each query word, the number of steps the algorithm uses when searching for the word.<\/p>\r\n","hint":"<p>In the second example, the number of steps to search for the word &quot;krampus&quot; is 8 because the algorithm only needs to compare its first letter to each word in the database.<\/p>\r\n\r\n<p>When searching for the word &quot;malnar&quot;, we need three steps for each of the first three words, and four steps for each of the remaining five words, for a total of 29 steps.<\/p>\r\n\r\n<p>To find the word &quot;majmun&quot; we use a total of 14 steps. For the first word in the database, we have six successful comparisons and one step in which we determine that the word &quot;majmunica&quot; is longer than the query word. For the second word, we also have six successful comparisons and a final step in which it is established that the words are equal. After finding the word, the algorithm terminates with great joy.<\/p>\r\n","original":"1","html_title":"0","problem_lang_tcode":"English"}]

출처

Contest > Croatian Open Competition in Informatics > COCI 2007/2008 > Contest #5 6번