View Compilation Error

0_0_12719521_9282.cpp: In function `void bfs()':
0_0_12719521_9282.cpp:23: error: expected `;' before "r"
0_0_12719521_9282.cpp:26: error: `r' undeclared (first use this function)
0_0_12719521_9282.cpp:26: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_12719521_9282.cpp:45: error: `temp' undeclared (first use this function)