Sample test case like last test case (n = 10000) failure
Consider follwing testcase\n\n4\n[[0,1],[1,2],[0,2],[1,3],[2,3]]\n\nIf your check is only based on low[u] and low[v], then code will consider [2,3] as critical 
Consider follwing testcase\n```\n4\n[[0,1],[1,2],[0,2],[1,3],[2,3]]\n```\nIf your check is only based on low[u] and low[v], then code will consider `[2,3`] as critical connection, which is actually incorrect.\n\n\n
['Depth-First Search']