View Compilation Error

0_0_9554238_4845.cpp: In function `void bfs()':
0_0_9554238_4845.cpp:32: error: `min' undeclared (first use this function)
0_0_9554238_4845.cpp:32: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_9554238_4845.cpp: In function `int main()':
0_0_9554238_4845.cpp:70: error: `min' undeclared (first use this function)