View Compilation Error

0_0_7816683_3848.cpp:11: error: invalid function declaration
0_0_7816683_3848.cpp: In function `int bfs(int, int, int, int)':
0_0_7816683_3848.cpp:27: error: `move' undeclared (first use this function)
0_0_7816683_3848.cpp:27: error: (Each undeclared identifier is reported only once for each function it appears in.)