View Compilation Error

0_0_8975034_1037.cpp: In function `int BFS()':
0_0_8975034_1037.cpp:52: error: missing template arguments before "q"
0_0_8975034_1037.cpp:52: error: expected `;' before "q"
0_0_8975034_1037.cpp:58: error: `q' undeclared (first use this function)
0_0_8975034_1037.cpp:58: error: (Each undeclared identifier is reported only once for each function it appears in.)