View Compilation Error

0_0_9219002_32745.cpp:17: error: expected constructor, destructor, or type conversion before '<' token
0_0_9219002_32745.cpp:17: error: expected `,' or `;' before '<' token
0_0_9219002_32745.cpp: In function `bool bfs(int)':
0_0_9219002_32745.cpp:18: error: `q' undeclared (first use this function)
0_0_9219002_32745.cpp:18: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_9219002_32745.cpp:18: error: expected `}' at end of input
0_0_9219002_32745.cpp:18: error: expected `}' at end of input
0_0_9219002_32745.cpp:18: error: expected `}' at end of input