View Compilation Error

0_0_8118813_30026.cpp:1:10: #include expects "FILENAME" or <FILENAME>
0_0_8118813_30026.cpp: In function `void bfs()':
0_0_8118813_30026.cpp:57: error: `queue' undeclared (first use this function)
0_0_8118813_30026.cpp:57: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_8118813_30026.cpp:57: error: expected `;' before "q"
0_0_8118813_30026.cpp:59: error: `q' undeclared (first use this function)