문제
소시갤 회장 항승이는 클럽에 회원들을 모아놓고 함께 소녀시대 춤을 추고 난 뒤 팬들에게 소녀시대 춤에서 마지막 부분에 나오는 멤버들이 한 줄로 모이는 부분을 안무 해주고 있었다.
안무를 하던 중 항승이는 한 줄로 선 상태에서 이들 중 연속된 사람들을 그룹 지었을 때, 이 그룹에 속한 남녀의 수가 같은 그룹이 가장 보기 좋다는 것을 알았다.
그래서 항승이는 팬들이 한 줄로 섰을 때 위의 조건을 만족하는 그룹 중 가장 길이가 긴 그룹을 찾고자 한다. 가장 길이가 길다는 의미는 그룹에서 x좌표가 가장 작은 사람과 큰 사람의 차이가 가장 크다는 것이다. 우리는 이런 항승이를 도와주자.
출력
조건을 만족하는 그룹 중 가장 긴 그룹의 길이를 출력한다.
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c2NyaWJlIGEgc2luZ2xlIGNvdyBjb250YWluaW5nIHJlc3BlY3RpdmVseTogYSBicmVlZCBJRCBhbmQgYW4geCBjb29yZGluYXRlPFwvcD5cclxuIiwib3V0cHV0IjoiPHA+KiBMaW5lIDE6IEEgc2luZ2xlIGludGVnZXIgc3BlY2lmeWluZyB0aGUgc2l6ZSBvZiB0aGUgbGFyZ2VzdCBjb250aWd1b3VzIGJhbGFuY2VkIGdyb3VwIG9mIGNvd3MuPFwvcD5cclxuXHJcbjxwPiZuYnNwOzxcL3A+XHJcbiIsImhpbnQiOiIiLCJvcmlnaW5hbCI6IjEiLCJwcm9ibGVtX2xhbmdfY29kZSI6Ilx1YzYwMVx1YzViNCJ9XQ==
