시간 제한 메모리 제한 제출 정답 맞은 사람 정답 비율
1 초 128 MB 120 52 46 44.231%

문제

지금껏 문제를 풀면서 출력 형식 오류 메시지를 본 적이 있을 것이다.

출력 형식 오류는 답은 적절히 맞았으나 공백 설정이 잘못되었거나, 일부 답안에 대해 자칫 지나치기 쉬운 사소한 오타를 냈을 때 볼 수가 있다.

이번 기회에 출력 형식 오류를 직접 잡아내는 프로그램을 작성해보면서 출력 형식 오류에 대한 이해도를 높이고 실수를 줄여보도록 하자.

프로그램은 두 개의 문자열을 비교하여 두 문자열이 출력 형식을 감안하면 같은 문자열인지, 혹은 그냥 서로 다른 문자열인지를 판정해야 한다.

프로그램은 다음의 문자들로만 이루어져 있다.

  • 대문자 혹은 소문자 영문 알파벳
  • 숫자
  • 공백 (탭이 아닌 스페이스바)
  • 특수 부호

특수 부호의 목록은 아래와 같다.

출력 형식만 다른 문자열인지는 아래의 규칙에 따라 판정한다.

  • 알파벳 대문자와 소문자는 구별하지 않는다.
  • 공백이 하나 이상이라면, 공백의 크기는 관계없다. 물론 어떤 문자열엔 공백이 있고 어떤 문자열엔 공백이 없는 것, 즉 공백 유무의 차이 자체는 문제가 된다.
  • 문자열의 맨 앞 혹은 맨 뒤에 나타나는 공백은 있으나 없으나 관계없다.
  • 특수 부호의 바로 앞이나 바로 뒤에 나오는 공백도 있으나 없으나 상관없다.
  • 여는 괄호끼리는 종류를 구별하지 않는다.
  • 닫는 괄호끼리는 종류를 구별하지 않는다.
  • 쉼표(",")와 세미콜론(";")은 구별하지 않는다.

입력

첫 줄에 테스트 케이스의 수 K가 주어진다.

이어 두 줄에 걸쳐 문자열 s1과 문자열 s2가 주어진다.

각 문자열의 길이는 1000 이하이다.

개행 문자는 문자열에 포함되지 않는다.

출력

각 테스트 케이스마다, Data Set K: 를 출력한 뒤

만일 두 문자열이 출력 형식을 감안했을 때 동일한 문자열이라면 equal을, 출력 형식을 잘 조작해도 서로 다른 문자열이라면 not equal을 출력한다.

각 테스트 케이스의 사이엔 빈 줄을 하나 출력한다.

예제 입력 1

3
( 1, 4 ) (2,3) (2,4)
{ 1; 4 )   {2;3)  {2;4)
Data Set 1: equal
data   set 1 :  EQUAL
Data Set 1: equal
DataSet 1: equal

예제 출력 1

Data Set 1: equal

Data Set 2: equal

Data Set 3: not equal
[{"problem_id":"5177","problem_lang":"0","title":"\ucd9c\ub825 \ud615\uc2dd\uc774 \uc798\ubabb\ub418\uc5c8\uc2b5\ub2c8\ub2e4","description":"<p>\uc9c0\uae08\uaecf \ubb38\uc81c\ub97c \ud480\uba74\uc11c \ucd9c\ub825 \ud615\uc2dd \uc624\ub958 \uba54\uc2dc\uc9c0\ub97c \ubcf8 \uc801\uc774 \uc788\uc744 \uac83\uc774\ub2e4.<\/p>\r\n\r\n<p>\ucd9c\ub825 \ud615\uc2dd \uc624\ub958\ub294 \ub2f5\uc740 \uc801\uc808\ud788 \ub9de\uc558\uc73c\ub098 \uacf5\ubc31 \uc124\uc815\uc774 \uc798\ubabb\ub418\uc5c8\uac70\ub098, \uc77c\ubd80 \ub2f5\uc548\uc5d0 \ub300\ud574 \uc790\uce6b \uc9c0\ub098\uce58\uae30 \uc26c\uc6b4 \uc0ac\uc18c\ud55c \uc624\ud0c0\ub97c \ub0c8\uc744 \ub54c \ubcfc \uc218\uac00 \uc788\ub2e4.<\/p>\r\n\r\n<p>\uc774\ubc88 \uae30\ud68c\uc5d0 \ucd9c\ub825 \ud615\uc2dd \uc624\ub958\ub97c \uc9c1\uc811 \uc7a1\uc544\ub0b4\ub294 \ud504\ub85c\uadf8\ub7a8\uc744 \uc791\uc131\ud574\ubcf4\uba74\uc11c \ucd9c\ub825 \ud615\uc2dd \uc624\ub958\uc5d0 \ub300\ud55c \uc774\ud574\ub3c4\ub97c \ub192\uc774\uace0 \uc2e4\uc218\ub97c \uc904\uc5ec\ubcf4\ub3c4\ub85d \ud558\uc790.<\/p>\r\n\r\n<p>\ud504\ub85c\uadf8\ub7a8\uc740 \ub450 \uac1c\uc758 \ubb38\uc790\uc5f4\uc744 \ube44\uad50\ud558\uc5ec \ub450 \ubb38\uc790\uc5f4\uc774 \ucd9c\ub825 \ud615\uc2dd\uc744 \uac10\uc548\ud558\uba74 \uac19\uc740 \ubb38\uc790\uc5f4\uc778\uc9c0, \ud639\uc740 \uadf8\ub0e5 \uc11c\ub85c \ub2e4\ub978 \ubb38\uc790\uc5f4\uc778\uc9c0\ub97c \ud310\uc815\ud574\uc57c \ud55c\ub2e4.<\/p>\r\n\r\n<p>\ud504\ub85c\uadf8\ub7a8\uc740 \ub2e4\uc74c\uc758 \ubb38\uc790\ub4e4\ub85c\ub9cc \uc774\ub8e8\uc5b4\uc838 \uc788\ub2e4.<\/p>\r\n\r\n<ul>\r\n\t<li>\ub300\ubb38\uc790 \ud639\uc740 \uc18c\ubb38\uc790 \uc601\ubb38 \uc54c\ud30c\ubcb3<\/li>\r\n\t<li>\uc22b\uc790<\/li>\r\n\t<li>\uacf5\ubc31 (\ud0ed\uc774 \uc544\ub2cc \uc2a4\ud398\uc774\uc2a4\ubc14)<\/li>\r\n\t<li>\ud2b9\uc218 \ubd80\ud638<\/li>\r\n<\/ul>\r\n\r\n<p>\ud2b9\uc218 \ubd80\ud638\uc758 \ubaa9\ub85d\uc740 \uc544\ub798\uc640 \uac19\ub2e4.<\/p>\r\n\r\n<p><img src=\"\/userupload\/portableangel\/201502\/7feaf62a612ee45fc5b3dad71f679008.png\" \/><\/p>\r\n\r\n<p>\ucd9c\ub825 \ud615\uc2dd\ub9cc \ub2e4\ub978 \ubb38\uc790\uc5f4\uc778\uc9c0\ub294 \uc544\ub798\uc758 \uaddc\uce59\uc5d0 \ub530\ub77c \ud310\uc815\ud55c\ub2e4.<\/p>\r\n\r\n<ul>\r\n\t<li>\uc54c\ud30c\ubcb3 \ub300\ubb38\uc790\uc640 \uc18c\ubb38\uc790\ub294 \uad6c\ubcc4\ud558\uc9c0 \uc54a\ub294\ub2e4.<\/li>\r\n\t<li>\uacf5\ubc31\uc774 \ud558\ub098 \uc774\uc0c1\uc774\ub77c\uba74, \uacf5\ubc31\uc758 \ud06c\uae30\ub294 \uad00\uacc4\uc5c6\ub2e4. \ubb3c\ub860 \uc5b4\ub5a4 \ubb38\uc790\uc5f4\uc5d4 \uacf5\ubc31\uc774 \uc788\uace0 \uc5b4\ub5a4 \ubb38\uc790\uc5f4\uc5d4 \uacf5\ubc31\uc774 \uc5c6\ub294 \uac83, \uc989 \uacf5\ubc31 \uc720\ubb34\uc758 \ucc28\uc774 \uc790\uccb4\ub294 \ubb38\uc81c\uac00 \ub41c\ub2e4.<\/li>\r\n\t<li>\ubb38\uc790\uc5f4\uc758 \ub9e8 \uc55e \ud639\uc740 \ub9e8 \ub4a4\uc5d0 \ub098\ud0c0\ub098\ub294 \uacf5\ubc31\uc740 \uc788\uc73c\ub098 \uc5c6\uc73c\ub098 \uad00\uacc4\uc5c6\ub2e4.<\/li>\r\n\t<li>\ud2b9\uc218 \ubd80\ud638\uc758 \ubc14\ub85c \uc55e\uc774\ub098 \ubc14\ub85c \ub4a4\uc5d0 \ub098\uc624\ub294 \uacf5\ubc31\ub3c4 \uc788\uc73c\ub098 \uc5c6\uc73c\ub098 \uc0c1\uad00\uc5c6\ub2e4.<\/li>\r\n\t<li>\uc5ec\ub294 \uad04\ud638\ub07c\ub9ac\ub294 \uc885\ub958\ub97c \uad6c\ubcc4\ud558\uc9c0 \uc54a\ub294\ub2e4.<\/li>\r\n\t<li>\ub2eb\ub294 \uad04\ud638\ub07c\ub9ac\ub294 \uc885\ub958\ub97c \uad6c\ubcc4\ud558\uc9c0 \uc54a\ub294\ub2e4.<\/li>\r\n\t<li>\uc27c\ud45c(&quot;,&quot;)\uc640 \uc138\ubbf8\ucf5c\ub860(&quot;;&quot;)\uc740 \uad6c\ubcc4\ud558\uc9c0 \uc54a\ub294\ub2e4.<\/li>\r\n<\/ul>\r\n","input":"<p>\uccab \uc904\uc5d0 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4\uc758 \uc218 K\uac00 \uc8fc\uc5b4\uc9c4\ub2e4.<\/p>\r\n\r\n<p>\uc774\uc5b4 \ub450 \uc904\uc5d0 \uac78\uccd0 \ubb38\uc790\uc5f4 s1\uacfc \ubb38\uc790\uc5f4 s2\uac00 \uc8fc\uc5b4\uc9c4\ub2e4.<\/p>\r\n\r\n<p>\uac01 \ubb38\uc790\uc5f4\uc758 \uae38\uc774\ub294 1000 \uc774\ud558\uc774\ub2e4.<\/p>\r\n\r\n<p>\uac1c\ud589 \ubb38\uc790\ub294 \ubb38\uc790\uc5f4\uc5d0 \ud3ec\ud568\ub418\uc9c0 \uc54a\ub294\ub2e4.<\/p>\r\n","output":"<p>\uac01 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4\ub9c8\ub2e4, Data Set K: \ub97c \ucd9c\ub825\ud55c \ub4a4<\/p>\r\n\r\n<p>\ub9cc\uc77c \ub450 \ubb38\uc790\uc5f4\uc774 \ucd9c\ub825 \ud615\uc2dd\uc744 \uac10\uc548\ud588\uc744 \ub54c \ub3d9\uc77c\ud55c \ubb38\uc790\uc5f4\uc774\ub77c\uba74 equal\uc744, \ucd9c\ub825 \ud615\uc2dd\uc744 \uc798 \uc870\uc791\ud574\ub3c4 \uc11c\ub85c \ub2e4\ub978 \ubb38\uc790\uc5f4\uc774\ub77c\uba74 not equal\uc744 \ucd9c\ub825\ud55c\ub2e4.<\/p>\r\n\r\n<p>\uac01 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4\uc758 \uc0ac\uc774\uc5d4 \ube48 \uc904\uc744 \ud558\ub098 \ucd9c\ub825\ud55c\ub2e4.<\/p>\r\n","hint":"","original":"0","problem_lang_code":"\ud55c\uad6d\uc5b4"},{"problem_id":"5177","problem_lang":"1","title":"Format Error!","description":"<p>Those of you who participated in past contests probably still remember them with pain, and the new ones will soon find out what we&rsquo;re talking about: Format Errors. You write a wonderful correct solution and submit it, and Bang!, you get the result &ldquo;Format Error!&rdquo; from the judges. Just because you had one blank too much, or accidentally typed the wrong kind of parentheses.<\/p>\r\n\r\n<p>Of course, we are aware that this is painful, but we don&rsquo;t want to judge all these solutions with lots of output by hand &mdash; you&rsquo;d never get the results. However, if we had a program to do the job, things might look a lot better. Guess what! You get to write us such a program.<\/p>\r\n\r\n<p>The program will compare two strings at a time, and decide whether they are &ldquo;equal&rdquo; (in a relaxed sense) to one another. Strings will consist of uppercase and lowercase letters, digits, whitespace (no tabs), and the following punctuation marks (no others will appear in our test cases):<\/p>\r\n\r\n<pre>\r\n( ) [ ] { } . , ; :<\/pre>\r\n\r\n<p>The following are the rules according to which strings will be considered equal:<\/p>\r\n\r\n<ul>\r\n\t<li>Upper and lowercase letters can be interchanged.<\/li>\r\n\t<li>The size of a block of whitespace is unimportant (this of course applies only to blocks consisting of at least one whitespace). Whitespace immediately following or preceding punctuation marks is unimportant. Leading or trailing whitespace (i.e. at the beginning or end of strings) is unimportant.<\/li>\r\n\t<li>The various kinds of opening brackets can be interchanged. The various kinds of closing brackets can be interchanged (however, an opening bracket can not be interchanged with a closing bracket). Brackets need not match.<\/li>\r\n\t<li>Comma (&ldquo;,&rdquo;) and semicolon (&ldquo;;&rdquo;) can be interchanged.<\/li>\r\n<\/ul>\r\n","input":"<p>The first line is the number K of data sets in the file. This is followed by the K data sets, each consisting of two strings s1 and s2 (of length at most 1000 characters each) on separate lines. The newline character is not considered part of the string.<\/p>\r\n","output":"<p>For each data set, output its number, and either &ldquo;equal&rdquo; or &ldquo;not equal&rdquo;, depending on whether s1 and s2 represent the same string for this data set. Output for different data sets should be separated by an empty line.<\/p>\r\n","hint":"","original":"1","problem_lang_code":"\uc601\uc5b4"}]

출처

University > The USC Programming Contest > Fall 2007 C번