{"trustable":false,"sections":[{"title":"","value":{"format":"HTML","content":"\n \u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\n \u003cb\u003eBackground\u003c/b\u003e \n \u003cbr\u003eProfessor Hopper is researching the sexual behavior of a rare species of bugs. He assumes that they feature two different genders and that they only interact with bugs of the opposite gender. In his experiment, individual bugs and their interactions were easy to identify, because numbers were printed on their backs. \n \u003cbr\u003e\n \u003cb\u003eProblem\u003c/b\u003e \n \u003cbr\u003eGiven a list of bug interactions, decide whether the experiment supports his assumption of two genders with no homosexual bugs or if it contains some bug interactions that falsify it.\n \u003c/div\u003e\nBug有两种性别,异性之间才交往, 让你根据数据判断是否存在同性恋,输入有 t 组数据,每组数据给出bug数量n, 和关系数m, 以下m行给出相交往的一对Bug编号 a, b。只需要判断有没有,按题目要求输出。"}},{"title":"Input","value":{"format":"HTML","content":"\n \u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\n The first line of the input contains the number of scenarios. Each scenario starts with one line giving the number of bugs (at least one, and up to 2000) and the number of interactions (up to 1000000) separated by a single space. In the following lines, each interaction is given in the form of two distinct bug numbers separated by a single space. Bugs are numbered consecutively starting from one.\n \u003c/div\u003e"}},{"title":"Output","value":{"format":"HTML","content":"\n \u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\n The output for every scenario is a line containing \"Scenario #i:\", where i is the number of the scenario starting at 1, followed by one line saying either \"No suspicious bugs found!\" if the experiment is consistent with his assumption about the bugs\u0027 sexual behavior, or \"Suspicious bugs found!\" if Professor Hopper\u0027s assumption is definitely wrong.\n \u003c/div\u003e"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre class\u003d\"sio\"\u003e2\n3 3\n1 2\n2 3\n1 3\n4 2\n1 2\n3 4\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre class\u003d\"sio\"\u003eScenario #1:\nSuspicious bugs found!\n\nScenario #2:\nNo suspicious bugs found!\u003c/pre\u003e"}},{"title":"Hint","value":{"format":"HTML","content":"\n \u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\n Huge input,scanf is recommended.\n \u003c/div\u003e"}}]}