题目链接：http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&category=512&problem=4164&mosmsg=Submission+received+with+ID+12898267 题意：给n只队伍，每两队比两场，赢得3分，平1分，输0分，要选一个梦之队：