시간 제한메모리 제한제출정답맞힌 사람정답 비율
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문제

Bob은 문자열 정렬기를 만들어야한다.

문자열은 영문 알파벳 이외에도 붙임표 ('-')가 들어가는 경우가 있기 때문에 처리가 까다롭다. 이 문제에 한해, 서로 다른 두 문자열 $X$, $Y$의 "사전식" 순서는 아래 규칙에 따라 정한다:

  1. $X$가 $Y$의 접두사인 (prefix) 경우 $X$가 $Y$보다 앞선다. 반대로, $Y$가 $X$의 접두사인 경우 $Y$가 $X$보다 앞선다.
  2. 위 경우에 해당하지 않을 경우: 첫번째 문자부터 시작하여 $X$, $Y$가 처음으로 달라지는 부분이 $i$번째 문자라 하자. $X$의 $i$번째 문자를 $X_i$, $Y$의 $i$번째 문자를 $Y_i$라 했을 때:
    1. 둘 중 하나만 붙임표 ('-')인 경우, 붙임표가 들어간 문자열이 사전순에서 뒤진다. 예를 들어, $X_i$가 붙임표이고 $Y_i$가 붙임표가 아닌 경우, $Y$가 앞선다.
    2. 둘 다 알파벳인 경우, 대소문자를 무시했을 때 서로 다른 알파벳이라면, 알파벳 순서를 따른다. 만약 같은 알파벳이지만 하나만 대문자인 경우 대문자가 들어간 문자열이 사전순에서 앞선다.

예를 들어, 아래와 같은 문자열 쌍을 비교해보자:

  • $X = $"Santa-Mar" 과 $Y = $"Santa-Maria": 이 경우 규칙 1에 따라 $X$가 앞선다. $X$가 $Y$의 접두사이기 때문이다.
  • $X = $"San-Francisco" 와 $Y = $"Santa-Clara": 이 경우 처음 $3$개의 문자는 같지만 $4$번째 문자가 '-'와 't'로 다르다. 규칙 2-1에 따라 $X$가 $Y$에 뒤진다.
  • $X = $"Seoul"과 $Y = $"seoul": 이 경우 규칙 2-2에 따라 "Seoul"이 앞선다.

입력으로 $n$개의 문자열이 주어졌을 때, 위 규칙에 따라 사전식 정렬 후 출력하는 문자열 정렬기를 만들어보자.

입력

첫 줄에 테스트 케이스의 수 $T$가 주어진다.

각 테스트 케이스의 첫 줄에는 $n$이 주어진다. 다음 $n$줄에 걸쳐 각 줄에 문자열이 하나씩 주어진다.

출력

각 테스트 케이스의 정답을 $n$줄에 걸쳐 출력한다. 각 줄에는 사전순으로 정렬된 문자열 하나씩을 순서대로 출력한다.

제한

  • $1 ≤ T ≤ 10$
  • $1 ≤ n ≤ 15\,000$
  • 각 테스트 케이스의 입력으로 주어지는 $n$개의 문자열에 대하여:
    • $1 ≤ $ 문자열의 길이 $ ≤ 50$
    • 문자열은 영문 대문자 ('A'-'Z'), 영문 소문자 ('a'-'z'), 그리고 붙임표 ('-') 만을 포함한다

예제 입력 1

4
3
Aa-
a-A
Aa-
7
San-Francisco
Santa-Clara
Santa-Clarita
San-Luis-Obispo
San-Pedro
Saint-Paul
Saint-Louis
2
Santa-mar
Santa-Mar
3
-
--
---

예제 출력 1

Aa-
Aa-
a-A
Saint-Louis
Saint-Paul
Santa-Clara
Santa-Clarita
San-Francisco
San-Luis-Obispo
San-Pedro
Santa-Mar
Santa-mar
-
--
---

예제 1: "Aa-" 문자열이 두 번 주어졌으므로 두 번 출력해야 한다. "Aa-" 와 "a-A"를 비교하면 첫 글자가 다르므로 규칙 2-2에 따라 "Aa-"가 사전순으로 앞선다.

예제 2: "Saint-Louis" 와 "Saint-Paul" 의 경우 'L' 이 'P' 보다 앞선다.

예제 3: "Santa-Mar" 과 "Santa-mar"의 경우 'M' 이 'm' 보다 앞선다.

예제 4: 추가 설명 없음 (규칙 1 참고)

[{"problem_id":"25204","problem_lang":"0","title":"\ubb38\uc790\uc5f4 \uc815\ub82c","description":"<p>Bob\uc740 \ubb38\uc790\uc5f4 \uc815\ub82c\uae30\ub97c \ub9cc\ub4e4\uc5b4\uc57c\ud55c\ub2e4.<\/p>\r\n\r\n<p>\ubb38\uc790\uc5f4\uc740 \uc601\ubb38 \uc54c\ud30c\ubcb3 \uc774\uc678\uc5d0\ub3c4 \ubd99\uc784\ud45c (&#39;<code>-<\/code>&#39;)\uac00 \ub4e4\uc5b4\uac00\ub294 \uacbd\uc6b0\uac00 \uc788\uae30 \ub54c\ubb38\uc5d0 \ucc98\ub9ac\uac00 \uae4c\ub2e4\ub86d\ub2e4. \uc774 \ubb38\uc81c\uc5d0 \ud55c\ud574, \uc11c\ub85c \ub2e4\ub978 \ub450 \ubb38\uc790\uc5f4 $X$, $Y$\uc758 &quot;\uc0ac\uc804\uc2dd&quot; \uc21c\uc11c\ub294 \uc544\ub798 \uaddc\uce59\uc5d0 \ub530\ub77c \uc815\ud55c\ub2e4:<\/p>\r\n\r\n<ol>\r\n\t<li>$X$\uac00 $Y$\uc758 \uc811\ub450\uc0ac\uc778 (prefix) \uacbd\uc6b0 $X$\uac00 $Y$\ubcf4\ub2e4 \uc55e\uc120\ub2e4. \ubc18\ub300\ub85c, $Y$\uac00 $X$\uc758 \uc811\ub450\uc0ac\uc778 \uacbd\uc6b0 $Y$\uac00 $X$\ubcf4\ub2e4 \uc55e\uc120\ub2e4.<\/li>\r\n\t<li>\uc704 \uacbd\uc6b0\uc5d0 \ud574\ub2f9\ud558\uc9c0 \uc54a\uc744 \uacbd\uc6b0: \uccab\ubc88\uc9f8 \ubb38\uc790\ubd80\ud130 \uc2dc\uc791\ud558\uc5ec $X$, $Y$\uac00 \ucc98\uc74c\uc73c\ub85c <em>\ub2ec\ub77c\uc9c0\ub294 \ubd80\ubd84\uc774<\/em> $i$\ubc88\uc9f8 \ubb38\uc790\ub77c \ud558\uc790. $X$\uc758 $i$\ubc88\uc9f8 \ubb38\uc790\ub97c $X_i$, $Y$\uc758 $i$\ubc88\uc9f8 \ubb38\uc790\ub97c $Y_i$\ub77c \ud588\uc744 \ub54c:\r\n\t<ol>\r\n\t\t<li>\ub458 \uc911 \ud558\ub098\ub9cc \ubd99\uc784\ud45c (&#39;<code>-<\/code>&#39;)\uc778 \uacbd\uc6b0, \ubd99\uc784\ud45c\uac00 \ub4e4\uc5b4\uac04 \ubb38\uc790\uc5f4\uc774 \uc0ac\uc804\uc21c\uc5d0\uc11c \ub4a4\uc9c4\ub2e4. \uc608\ub97c \ub4e4\uc5b4, $X_i$\uac00 \ubd99\uc784\ud45c\uc774\uace0 $Y_i$\uac00 \ubd99\uc784\ud45c\uac00 \uc544\ub2cc \uacbd\uc6b0, $Y$\uac00 \uc55e\uc120\ub2e4.<\/li>\r\n\t\t<li>\ub458 \ub2e4 \uc54c\ud30c\ubcb3\uc778 \uacbd\uc6b0, \ub300\uc18c\ubb38\uc790\ub97c \ubb34\uc2dc\ud588\uc744 \ub54c \uc11c\ub85c \ub2e4\ub978 \uc54c\ud30c\ubcb3\uc774\ub77c\uba74, \uc54c\ud30c\ubcb3 \uc21c\uc11c\ub97c \ub530\ub978\ub2e4. \ub9cc\uc57d \uac19\uc740 \uc54c\ud30c\ubcb3\uc774\uc9c0\ub9cc \ud558\ub098\ub9cc \ub300\ubb38\uc790\uc778 \uacbd\uc6b0 \ub300\ubb38\uc790\uac00 \ub4e4\uc5b4\uac04 \ubb38\uc790\uc5f4\uc774 \uc0ac\uc804\uc21c\uc5d0\uc11c \uc55e\uc120\ub2e4.<\/li>\r\n\t<\/ol>\r\n\t<\/li>\r\n<\/ol>\r\n\r\n<p>\uc608\ub97c \ub4e4\uc5b4, \uc544\ub798\uc640 \uac19\uc740 \ubb38\uc790\uc5f4 \uc30d\uc744 \ube44\uad50\ud574\ubcf4\uc790:<\/p>\r\n\r\n<ul>\r\n\t<li>$X = $&quot;<code>Santa-Mar<\/code>&quot; \uacfc $Y = $&quot;<code>Santa-Maria<\/code>&quot;: \uc774 \uacbd\uc6b0 \uaddc\uce59 1\uc5d0 \ub530\ub77c $X$\uac00 \uc55e\uc120\ub2e4. $X$\uac00 $Y$\uc758 \uc811\ub450\uc0ac\uc774\uae30 \ub54c\ubb38\uc774\ub2e4.<\/li>\r\n\t<li>$X = $&quot;<code>San-Francisco<\/code>&quot; \uc640 $Y = $&quot;<code>Santa-Clara<\/code>&quot;: \uc774 \uacbd\uc6b0 \ucc98\uc74c $3$\uac1c\uc758 \ubb38\uc790\ub294 \uac19\uc9c0\ub9cc $4$\ubc88\uc9f8 \ubb38\uc790\uac00 &#39;<code>-<\/code>&#39;\uc640 &#39;<code>t<\/code>&#39;\ub85c \ub2e4\ub974\ub2e4. \uaddc\uce59 2-1\uc5d0 \ub530\ub77c $X$\uac00 $Y$\uc5d0 \ub4a4\uc9c4\ub2e4.<\/li>\r\n\t<li>$X = $&quot;<code>Seoul<\/code>&quot;\uacfc $Y = $&quot;<code>seoul<\/code>&quot;: \uc774 \uacbd\uc6b0 \uaddc\uce59 2-2\uc5d0 \ub530\ub77c &quot;<code>Seoul<\/code>&quot;\uc774 \uc55e\uc120\ub2e4.<\/li>\r\n<\/ul>\r\n\r\n<p>\uc785\ub825\uc73c\ub85c $n$\uac1c\uc758 \ubb38\uc790\uc5f4\uc774 \uc8fc\uc5b4\uc84c\uc744 \ub54c, \uc704 \uaddc\uce59\uc5d0 \ub530\ub77c \uc0ac\uc804\uc2dd \uc815\ub82c \ud6c4 \ucd9c\ub825\ud558\ub294 \ubb38\uc790\uc5f4 \uc815\ub82c\uae30\ub97c \ub9cc\ub4e4\uc5b4\ubcf4\uc790.<\/p>\r\n","input":"<p>\uccab \uc904\uc5d0 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4\uc758 \uc218 $T$\uac00 \uc8fc\uc5b4\uc9c4\ub2e4.<\/p>\r\n\r\n<p>\uac01 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4\uc758 \uccab \uc904\uc5d0\ub294 $n$\uc774 \uc8fc\uc5b4\uc9c4\ub2e4. \ub2e4\uc74c $n$\uc904\uc5d0 \uac78\uccd0 \uac01 \uc904\uc5d0 \ubb38\uc790\uc5f4\uc774 \ud558\ub098\uc529 \uc8fc\uc5b4\uc9c4\ub2e4.<\/p>\r\n","output":"<p>\uac01 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4\uc758 \uc815\ub2f5\uc744 $n$\uc904\uc5d0 \uac78\uccd0 \ucd9c\ub825\ud55c\ub2e4. \uac01 \uc904\uc5d0\ub294 \uc0ac\uc804\uc21c\uc73c\ub85c \uc815\ub82c\ub41c \ubb38\uc790\uc5f4 \ud558\ub098\uc529\uc744 \uc21c\uc11c\ub300\ub85c \ucd9c\ub825\ud55c\ub2e4.<\/p>\r\n","hint":"","original":"1","html_title":"0","problem_lang_tcode":"Korean","limit":"<ul>\r\n\t<li>$1 &le; T &le; 10$<\/li>\r\n\t<li>$1 &le; n &le; 15\\,000$<\/li>\r\n\t<li>\uac01 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4\uc758 \uc785\ub825\uc73c\ub85c \uc8fc\uc5b4\uc9c0\ub294 $n$\uac1c\uc758 \ubb38\uc790\uc5f4\uc5d0 \ub300\ud558\uc5ec:\r\n\t<ul>\r\n\t\t<li>$1 &le; $ \ubb38\uc790\uc5f4\uc758 \uae38\uc774 $ &le; 50$<\/li>\r\n\t\t<li>\ubb38\uc790\uc5f4\uc740 \uc601\ubb38 \ub300\ubb38\uc790 (&#39;<code>A<\/code>&#39;-&#39;<code>Z<\/code>&#39;), \uc601\ubb38 \uc18c\ubb38\uc790 (&#39;<code>a<\/code>&#39;-&#39;<code>z<\/code>&#39;), \uadf8\ub9ac\uace0 \ubd99\uc784\ud45c (&#39;<code>-<\/code>&#39;) \ub9cc\uc744 \ud3ec\ud568\ud55c\ub2e4<\/li>\r\n\t<\/ul>\r\n\t<\/li>\r\n<\/ul>\r\n","sample_explain_1":"<p>\uc608\uc81c 1: &quot;<code>Aa-<\/code>&quot; \ubb38\uc790\uc5f4\uc774 \ub450 \ubc88 \uc8fc\uc5b4\uc84c\uc73c\ubbc0\ub85c \ub450 \ubc88 \ucd9c\ub825\ud574\uc57c \ud55c\ub2e4. &quot;<code>Aa-<\/code>&quot; \uc640 &quot;<code>a-A<\/code>&quot;\ub97c \ube44\uad50\ud558\uba74 \uccab \uae00\uc790\uac00 \ub2e4\ub974\ubbc0\ub85c \uaddc\uce59 2-2\uc5d0 \ub530\ub77c &quot;<code>Aa-<\/code>&quot;\uac00 \uc0ac\uc804\uc21c\uc73c\ub85c \uc55e\uc120\ub2e4.<\/p>\r\n\r\n<p>\uc608\uc81c 2: &quot;<code>Saint-Louis<\/code>&quot; \uc640&nbsp;&quot;<code>Saint-Paul<\/code>&quot; \uc758 \uacbd\uc6b0 &#39;<code>L<\/code>&#39; \uc774 &#39;<code>P<\/code>&#39; \ubcf4\ub2e4 \uc55e\uc120\ub2e4.<\/p>\r\n\r\n<p>\uc608\uc81c 3: &quot;<code>Santa-Mar<\/code>&quot; \uacfc &quot;<code>Santa-mar<\/code>&quot;\uc758 \uacbd\uc6b0 &#39;<code>M<\/code>&#39; \uc774 &#39;<code>m<\/code>&#39; \ubcf4\ub2e4 \uc55e\uc120\ub2e4.<\/p>\r\n\r\n<p>\uc608\uc81c 4: \ucd94\uac00 \uc124\uba85 \uc5c6\uc74c (\uaddc\uce59 1 \ucc38\uace0)<\/p>\r\n"},{"problem_id":"25204","problem_lang":"1","title":"Sorting Strings","description":"<p>Bob needs to create a program that sorts strings.<\/p>\r\n\r\n<p>Each string may contain hyphens (&#39;<code>-<\/code>&#39;) in addition to English alphabets, which makes things tricky. For this problem, the &quot;lexicographic&nbsp;order&quot; between two distinct strings $X$ and $Y$ is defined as follows:<\/p>\r\n\r\n<ol>\r\n\t<li>If X is a prefix of $Y$, then $X$ comes before $Y$. Conversely, if $Y$ is a prefix of $X$, then $Y$ comes before $X.$<\/li>\r\n\t<li>Otherwise: Let $i$ be such that $X$ and $Y$ <em>differ<\/em> for the first time at the $i$-th character.<br \/>\r\n\tLet $X_i$&nbsp;be the $i$-th character of $X$ and $Y_i$&nbsp;be the $i$-th character of $Y$.\r\n\t<ol>\r\n\t\t<li>If only one of the two is a hyphen (&#39;<code>-<\/code>&#39;), the string with the hyphen comes later. For instance, if $X_i$&nbsp;is a hyphen and $Y_i$&nbsp;is not, then $Y$ comes before $X$.<\/li>\r\n\t\t<li>If both characters are different alphabets (while ignoring letter case), then the order follows the alphabet&#39;s lexicographic order. If both characters are the same alphabet but only differ in letter case, then the string with the uppercase alphabet comes before the other string.<\/li>\r\n\t<\/ol>\r\n\t<\/li>\r\n<\/ol>\r\n\r\n<p>For instance, consider the following pairs of strings:<\/p>\r\n\r\n<ul>\r\n\t<li>$X = $&quot;<code>Santa-Mar<\/code>&quot;,&nbsp;$Y = $&quot;<code>Santa-Maria<\/code>&quot;: Due to Rule 1, $X$ comes before $Y$ as $X$ is a prefix of $Y$.<\/li>\r\n\t<li>$X = $&quot;<code>San-Francisco<\/code>&quot;, $Y = $&quot;<code>Santa-Clara<\/code>&quot;: The two strings differ at the 4-th character (&#39;<code>-<\/code>&#39; vs &#39;<code>t<\/code>&#39;).&nbsp;Due to Rule 2-1, $X$ comes after $Y$.<\/li>\r\n\t<li>$X = $&quot;<code>Seoul<\/code>&quot;,&nbsp;$Y = $&quot;<code>seoul<\/code>&quot;: Due to Rule 2-2, &quot;<code>Seoul<\/code>&quot; comes before &quot;seoul&quot;.<\/li>\r\n<\/ul>\r\n\r\n<p>Given $n$ strings, sort the $n$ strings and output them.<\/p>\r\n","input":"<p>The first line will contain $T$, the number of test cases.<\/p>\r\n\r\n<p>Each test case will contain $n$, the number of strings. For the next $n$ lines, each line will contain one string.<\/p>\r\n","output":"<p>Output each test case&#39;s answer in $n$ lines that must contain the $n$ sorted strings, one in each line.<\/p>\r\n","hint":"","original":"0","html_title":"0","problem_lang_tcode":"English","limit":"<ul>\r\n\t<li>$1 &le; T &le; 10$<\/li>\r\n\t<li>$1 &le; n&nbsp;&le; 15\\,000$<\/li>\r\n\t<li>Within each test case, for the n strings in the case:\r\n\t<ul>\r\n\t\t<li>$1 &le; $ Length of each string $ &le; 50$<\/li>\r\n\t\t<li>Each string will only contain uppercase English alphabets (&#39;<code>A<\/code>&#39;-&#39;<code>Z<\/code>&#39;), lowercase English alphabets (&#39;<code>a<\/code>&#39;-&#39;<code>z<\/code>&#39;), and hyphens (&#39;<code>-<\/code>&#39;).<\/li>\r\n\t<\/ul>\r\n\t<\/li>\r\n<\/ul>\r\n","sample_explain_1":"<p>Case 1: The string &quot;<code>Aa-<\/code>&quot; was given twice in the input, so it must be output two times. Between &quot;<code>Aa-<\/code>&quot; and&nbsp;&quot;<code>a-A<\/code>&quot;, due to Rule 2-2, &quot;<code>Aa-<\/code>&quot; comes first.<\/p>\r\n\r\n<p>Case 2: In case of &quot;<code>Saint-Louis<\/code>&quot; vs&nbsp;&quot;<code>Saint-Paul<\/code>&quot;, &#39;<code>L<\/code>&#39; comes before &#39;<code>P<\/code>&#39;.<\/p>\r\n\r\n<p>Case 3: In case of &quot;<code>Santa-Mar<\/code>&quot; vs &quot;<code>Santa-mar<\/code>&quot;, &#39;<code>M<\/code>&#39; comes before &#39;<code>m<\/code>&#39;.<\/p>\r\n\r\n<p>Case 4: No further explanation provided (see Rule 1).<\/p>\r\n"}]

시간 제한

  • Java 8: 2.5 초
  • Python 3: 2.5 초
  • PyPy3: 2.5 초
  • Java 8 (OpenJDK): 2.5 초
  • Java 11: 2.5 초
  • Kotlin (JVM): 2.5 초
  • Java 15: 2.5 초