시간 제한 메모리 제한 제출 정답 맞은 사람 정답 비율
1 초 (하단 참고) 256 MB 6 6 4 100.000%

문제

사내 N명의 임직원이 심심풀이 선물 교환 이벤트를 열기로 했다. 임직원은 1부터 N까지 번호가 매겨져있다.

총 M쌍의 임직원쌍이 선택되었고, 각 쌍의 임직원은 둘 중 한 사람이 선물을 주고 다른 사람이 받아야 한다 (서로 줄 수 없다).

구체적으로 M개의 (X[i], Y[i]) 쌍이 선택되었고, 각 쌍에 대해 X[i]가 Y[i]에게 선물을 주거나 Y[i]가 X[i]에게 선물을 주어야만 한다.

다만, 선물을 주고 받는 재미를 더하기 위해 아래와 같은 규칙을 정했다:

  • 각 임직원 i에 대하여, 임직원 i가 (다른 사람에게) 주는 선물의 수와 (다른 사람으로부터) 받는 선물의 수의 차이가 2미만이어야 한다

임직원쌍이 M개 있으므로 누가 누구에게 선물을 줄지 정하는 방법은 2M 가지 존재하는데, 이는 길이가 M인 0-1 문자열로 나타낼 수 있다 (이를 선물 문자열이라 하자).

구체적으로, X[i] 가 Y[i]에게 선물을 주는 경우를 '0'으로 나타내고 반대의 경우를 '1'로 나타내자.

예를 들어, N = 3, M = 2이고 임직원 쌍이 (2, 1) 과 (3, 1)이라 하자 (즉, X = [2, 3], Y = [1, 1])

  1. 선물 문자열이 00인 경우: 임직원 2와 임직원 3이 임직원 1에게 선물을 준다. 이 경우 임직원 1이 선물을 2개 받고 0개 주어서 규칙을 어긴다.
  2. 선물 문자열이 01인 경우: 임직원 2가 임직원 1에게, 임직원 1이 임직원 3에게 선물을 준다. 이 경우 규칙을 어기지 않는다.
  3. 선물 문자열이 10인 경우: 임직원 1이 임직원 2에게, 임직원 3이 임직원 1에게 선물을 준다. 이 경우 규칙을 어기지 않는다.
  4. 선물 문자열이 11인 경우: 임직원 1이 임직원 2와 임직원 3에게 선물을 준다. 이 경우 임직원 1이 규칙을 어긴다.

임직원의 수 N과 M개의 임직원 쌍이 주어졌을 때, 위 규칙을 어기지 않는 선물 문자열을 찾으시오.

위 예제의 경우 "01" 과 "10" 중 어느 것을 찾아도 정답이다.

입력

첫 줄에 테스트 케이스의 수 T가 주어진다.

각 테스트 케이스의 첫 줄은 두 개의 정수 N과 M을 공백으로 구분하여 담고있다.

다음 M줄에 걸쳐서 임직원 쌍이 공백으로 구분되어 주어진다 (즉, X[i], Y[i]가 공백으로 구분되어 주어진다).

한 테스트 케이스 내에서 같은 쌍의 임직원은 최대 한 번만 입력으로 주어진다 (즉 x y가 한 번 입력으로 주어지면,x y 혹은 y x는 같은 테스트 케이스 내에서 다시 주어지지 않는다).

출력

각 테스트 케이스에 대해 규칙을 어기지 않는 (길이 M인) 선물 문자열 중 하나를 출력한다.

제한

  • 1 ≤ T ≤ 10
  • 2 ≤ N ≤ 1,000
  • 1 ≤ M ≤ min(100,000, N*(N-1)/2)

예제 입력 1

5
3 2
2 1
3 1
3 3
1 2
2 3
1 3
4 4
1 2
1 3
2 3
2 4
4 5
2 1
1 3
2 3
2 4
4 1
6 3
1 2
3 4
5 6

예제 출력 1

01
001
0100
11011
000
[{"problem_id":"19596","problem_lang":"0","title":"\uc120\ubb3c \uad50\ud658","description":"<p>\uc0ac\ub0b4 N\uba85\uc758 \uc784\uc9c1\uc6d0\uc774 \uc2ec\uc2ec\ud480\uc774 \uc120\ubb3c \uad50\ud658 \uc774\ubca4\ud2b8\ub97c \uc5f4\uae30\ub85c \ud588\ub2e4. \uc784\uc9c1\uc6d0\uc740 1\ubd80\ud130 N\uae4c\uc9c0 \ubc88\ud638\uac00 \ub9e4\uaca8\uc838\uc788\ub2e4.<\/p>\r\n\r\n<p>\ucd1d M\uc30d\uc758 \uc784\uc9c1\uc6d0\uc30d\uc774 \uc120\ud0dd\ub418\uc5c8\uace0, \uac01 \uc30d\uc758 \uc784\uc9c1\uc6d0\uc740 \ub458 \uc911 \ud55c \uc0ac\ub78c\uc774 \uc120\ubb3c\uc744 \uc8fc\uace0 \ub2e4\ub978 \uc0ac\ub78c\uc774 \ubc1b\uc544\uc57c \ud55c\ub2e4 (\uc11c\ub85c \uc904 \uc218 \uc5c6\ub2e4).<\/p>\r\n\r\n<p>\uad6c\uccb4\uc801\uc73c\ub85c M\uac1c\uc758 (X[i], Y[i]) \uc30d\uc774 \uc120\ud0dd\ub418\uc5c8\uace0, \uac01 \uc30d\uc5d0 \ub300\ud574&nbsp;X[i]\uac00 Y[i]\uc5d0\uac8c \uc120\ubb3c\uc744 \uc8fc\uac70\ub098 Y[i]\uac00 X[i]\uc5d0\uac8c \uc120\ubb3c\uc744 \uc8fc\uc5b4\uc57c\ub9cc \ud55c\ub2e4.<\/p>\r\n\r\n<p>\ub2e4\ub9cc, \uc120\ubb3c\uc744 \uc8fc\uace0 \ubc1b\ub294 \uc7ac\ubbf8\ub97c \ub354\ud558\uae30 \uc704\ud574 \uc544\ub798\uc640 \uac19\uc740 \uaddc\uce59\uc744 \uc815\ud588\ub2e4:<\/p>\r\n\r\n<ul>\r\n\t<li>\uac01 \uc784\uc9c1\uc6d0 i\uc5d0 \ub300\ud558\uc5ec, \uc784\uc9c1\uc6d0 i\uac00 (\ub2e4\ub978 \uc0ac\ub78c\uc5d0\uac8c) \uc8fc\ub294 \uc120\ubb3c\uc758 \uc218\uc640 (\ub2e4\ub978 \uc0ac\ub78c\uc73c\ub85c\ubd80\ud130) \ubc1b\ub294 \uc120\ubb3c\uc758 \uc218\uc758 \ucc28\uc774\uac00 2\ubbf8\ub9cc\uc774\uc5b4\uc57c \ud55c\ub2e4<\/li>\r\n<\/ul>\r\n\r\n<p>\uc784\uc9c1\uc6d0\uc30d\uc774 M\uac1c \uc788\uc73c\ubbc0\ub85c \ub204\uac00 \ub204\uad6c\uc5d0\uac8c \uc120\ubb3c\uc744 \uc904\uc9c0 \uc815\ud558\ub294 \ubc29\ubc95\uc740 2<sup>M<\/sup> \uac00\uc9c0 \uc874\uc7ac\ud558\ub294\ub370, \uc774\ub294 \uae38\uc774\uac00 M\uc778 0-1 \ubb38\uc790\uc5f4\ub85c \ub098\ud0c0\ub0bc \uc218 \uc788\ub2e4 (\uc774\ub97c \uc120\ubb3c \ubb38\uc790\uc5f4\uc774\ub77c \ud558\uc790).<\/p>\r\n\r\n<p>\uad6c\uccb4\uc801\uc73c\ub85c, X[i] \uac00 Y[i]\uc5d0\uac8c \uc120\ubb3c\uc744 \uc8fc\ub294 \uacbd\uc6b0\ub97c &#39;0&#39;\uc73c\ub85c \ub098\ud0c0\ub0b4\uace0 \ubc18\ub300\uc758 \uacbd\uc6b0\ub97c &#39;1&#39;\ub85c \ub098\ud0c0\ub0b4\uc790.<\/p>\r\n\r\n<p>\uc608\ub97c \ub4e4\uc5b4, N = 3, M = 2\uc774\uace0 \uc784\uc9c1\uc6d0 \uc30d\uc774 (2, 1) \uacfc (3, 1)\uc774\ub77c \ud558\uc790 (\uc989, X = [2, 3], Y = [1, 1])<\/p>\r\n\r\n<ol>\r\n\t<li>\uc120\ubb3c \ubb38\uc790\uc5f4\uc774 00\uc778 \uacbd\uc6b0:&nbsp;\uc784\uc9c1\uc6d0 2\uc640 \uc784\uc9c1\uc6d0 3\uc774 \uc784\uc9c1\uc6d0 1\uc5d0\uac8c \uc120\ubb3c\uc744 \uc900\ub2e4. \uc774 \uacbd\uc6b0 \uc784\uc9c1\uc6d0 1\uc774 \uc120\ubb3c\uc744 2\uac1c \ubc1b\uace0 0\uac1c \uc8fc\uc5b4\uc11c \uaddc\uce59\uc744 \uc5b4\uae34\ub2e4.<\/li>\r\n\t<li>\uc120\ubb3c \ubb38\uc790\uc5f4\uc774 01\uc778 \uacbd\uc6b0: \uc784\uc9c1\uc6d0 2\uac00 \uc784\uc9c1\uc6d0 1\uc5d0\uac8c, \uc784\uc9c1\uc6d0 1\uc774 \uc784\uc9c1\uc6d0 3\uc5d0\uac8c \uc120\ubb3c\uc744 \uc900\ub2e4. \uc774 \uacbd\uc6b0 \uaddc\uce59\uc744 \uc5b4\uae30\uc9c0 \uc54a\ub294\ub2e4.<\/li>\r\n\t<li>\uc120\ubb3c \ubb38\uc790\uc5f4\uc774 10\uc778 \uacbd\uc6b0: \uc784\uc9c1\uc6d0 1\uc774 \uc784\uc9c1\uc6d0 2\uc5d0\uac8c, \uc784\uc9c1\uc6d0 3\uc774 \uc784\uc9c1\uc6d0 1\uc5d0\uac8c \uc120\ubb3c\uc744 \uc900\ub2e4. \uc774 \uacbd\uc6b0 \uaddc\uce59\uc744 \uc5b4\uae30\uc9c0 \uc54a\ub294\ub2e4.<\/li>\r\n\t<li>\uc120\ubb3c \ubb38\uc790\uc5f4\uc774 11\uc778 \uacbd\uc6b0: \uc784\uc9c1\uc6d0 1\uc774 \uc784\uc9c1\uc6d0 2\uc640 \uc784\uc9c1\uc6d0 3\uc5d0\uac8c \uc120\ubb3c\uc744 \uc900\ub2e4. \uc774 \uacbd\uc6b0 \uc784\uc9c1\uc6d0 1\uc774 \uaddc\uce59\uc744 \uc5b4\uae34\ub2e4.<\/li>\r\n<\/ol>\r\n\r\n<p>\uc784\uc9c1\uc6d0\uc758 \uc218 N\uacfc M\uac1c\uc758 \uc784\uc9c1\uc6d0 \uc30d\uc774 \uc8fc\uc5b4\uc84c\uc744 \ub54c, \uc704 \uaddc\uce59\uc744 \uc5b4\uae30\uc9c0 \uc54a\ub294 \uc120\ubb3c \ubb38\uc790\uc5f4\uc744 \ucc3e\uc73c\uc2dc\uc624.<\/p>\r\n\r\n<p>\uc704 \uc608\uc81c\uc758 \uacbd\uc6b0 &quot;01&quot; \uacfc &quot;10&quot; \uc911 \uc5b4\ub290 \uac83\uc744 \ucc3e\uc544\ub3c4 \uc815\ub2f5\uc774\ub2e4.<\/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\uc740 \ub450 \uac1c\uc758 \uc815\uc218 N\uacfc M\uc744 \uacf5\ubc31\uc73c\ub85c \uad6c\ubd84\ud558\uc5ec \ub2f4\uace0\uc788\ub2e4.<\/p>\r\n\r\n<p>\ub2e4\uc74c M\uc904\uc5d0 \uac78\uccd0\uc11c \uc784\uc9c1\uc6d0 \uc30d\uc774 \uacf5\ubc31\uc73c\ub85c \uad6c\ubd84\ub418\uc5b4 \uc8fc\uc5b4\uc9c4\ub2e4 (\uc989, X[i], Y[i]\uac00 \uacf5\ubc31\uc73c\ub85c \uad6c\ubd84\ub418\uc5b4 \uc8fc\uc5b4\uc9c4\ub2e4).<\/p>\r\n\r\n<p>\ud55c \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4 \ub0b4\uc5d0\uc11c \uac19\uc740 \uc30d\uc758 \uc784\uc9c1\uc6d0\uc740 \ucd5c\ub300 \ud55c \ubc88\ub9cc \uc785\ub825\uc73c\ub85c \uc8fc\uc5b4\uc9c4\ub2e4 (\uc989 x&nbsp;y\uac00 \ud55c \ubc88 \uc785\ub825\uc73c\ub85c \uc8fc\uc5b4\uc9c0\uba74,x y \ud639\uc740 y x\ub294 \uac19\uc740 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4 \ub0b4\uc5d0\uc11c \ub2e4\uc2dc \uc8fc\uc5b4\uc9c0\uc9c0 \uc54a\ub294\ub2e4).<\/p>\r\n","output":"<p>\uac01 \ud14c\uc2a4\ud2b8 \ucf00\uc774\uc2a4\uc5d0 \ub300\ud574&nbsp;\uaddc\uce59\uc744 \uc5b4\uae30\uc9c0 \uc54a\ub294 (\uae38\uc774 M\uc778)&nbsp;\uc120\ubb3c \ubb38\uc790\uc5f4 \uc911 \ud558\ub098\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; T &le; 10<\/li>\r\n\t<li>2 &le; N &le; 1,000<\/li>\r\n\t<li>1 &le; M &le; min(100,000, N*(N-1)\/2)<\/li>\r\n<\/ul>\r\n"},{"problem_id":"19596","problem_lang":"1","title":"Gift Exchange","description":"<p>N employees are participating in a Gift Exchange event. Employees are labeled as 1, 2, ..., N.<\/p>\r\n\r\n<p>M pairs of employees have been chosen such that one employee must give a gift to the other employee in each pair.<\/p>\r\n\r\n<p>Formally, there are M pairs (X[i], Y[i]), and either X[i] should give Y[i] a gift&nbsp;or Y[i] should give X[i] a gift.<\/p>\r\n\r\n<p>To make this event more fun, the following rule will be enforced:<\/p>\r\n\r\n<ul>\r\n\t<li>For each employee i, the difference between the number of gifts employee i gives and the number of gifts employee i receives must be less than 2.<\/li>\r\n<\/ul>\r\n\r\n<p>As there are M pairs, there are exactly 2<sup>M<\/sup> ways to decide who gives a gift to whom, which can be represented by a 0-1 string of length M (let us call such strings &quot;gift strings&quot;).<\/p>\r\n\r\n<p>Specifically, if X[i] gives a gift to Y[i], we use &#39;0&#39; and the reverse way is &#39;1&#39;.<\/p>\r\n\r\n<p>For instance, consider N = 3, M = 2 with (2, 1) and (3, 1) being the pairs (that is, X = [2, 3] and Y = [1, 1]).<\/p>\r\n\r\n<ol>\r\n\t<li>When the gift string is 00: Employee 2 and employee 3 give a gift to employee 1. In this case, employee 1 receives two gifts and gives zero gifts, so this violates the rule.<\/li>\r\n\t<li>When the gift string is 01: Employee 2 gives a gift to employee 1 and employee 1 gives a gift to employee 3. This does not violate the rule.<\/li>\r\n\t<li>When the gift string is 10: Employee 1&nbsp;gives a gift to employee 2 and employee 3 gives a gift to employee 1.&nbsp;This does not violate the rule.<\/li>\r\n\t<li>When the gift string is 11: Employee 1 gives a gift&nbsp;both to employee 2 and to employee 3. Employee 1 violates the rule.<\/li>\r\n<\/ol>\r\n\r\n<p>Given N and M pairs, find any&nbsp;gift string that would not violate the rule.<\/p>\r\n\r\n<p>In the example above, both &quot;01&quot; and&nbsp;&quot;10&quot; are correct answers.<\/p>\r\n","input":"<p>The first line will contain the number of test cases, T.<\/p>\r\n\r\n<p>For each test case, the first line will contain N and M separated by a whitespace.<\/p>\r\n\r\n<p>The next M lines will contain X[i] and Y[i] separated by a whitespace.<\/p>\r\n\r\n<p>For each test case, the same pair of employees will be given as input at most once (that is, if &quot;x y&quot; is given as input, then neither &quot;x y&quot; nor &quot;y x&quot; will be given as input in the same test case).<\/p>\r\n","output":"<p>For each test case, output the gift string (of length M) that does not violate the rule.<\/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>2 &le; N &le; 1,000<\/li>\r\n\t<li>1 &le; M &le; min(100,000, N*(N-1)\/2)<\/li>\r\n<\/ul>\r\n"}]

시간 제한

  • Java 8: 2 초
  • Python 3: 4 초
  • PyPy3: 4 초
  • Java 8 (OpenJDK): 2 초
  • Java 11: 2 초
  • Python 2: 4 초
  • PyPy2: 4 초
  • Kotlin (JVM): 2 초
  • Java 15: 2 초