```\n["DetectSquares",\n"add","add","add",\n"count",\n"add","add","add",\n"count",\n"add","add","add",\n"count",\n"add","add","add",\n"count"]\n[[],\n[[5,10]],[[10,5]],[[10,10]],\n[[5,5]],\n[[3,0]],[[8,0]],[[8,5]],\n[[3,5]],\n[[9,0]],[[9,8]],[[1,8]],\n[[1,0]],\n[[0,0]],[[8,0]],[[8,8]],\n[[0,8]]] <-- here there are 3 Detect Squares: [[0,8], [0,0], [8,0], [8,8]]x2  (two [8,0])  and [[0,8], [0,0], [9,0], [9,8]]\n```\nWhat is wrong? The test case anser is 2, not 3.

\n["DetectSquares",\n"add","add","add",\n"count",\n"add","add","add",\n"count",\n"add","add","add",\n"count",\n"add","add","add",\n"count"]\n[[],\n[[5,10]],[[10