View Compilation Error

0_0_1550011_29547.cpp: In function `void bfs()':
0_0_1550011_29547.cpp:27: error: `min' undeclared (first use this function)
0_0_1550011_29547.cpp:27: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_1550011_29547.cpp: In function `int main()':
0_0_1550011_29547.cpp:62: error: `min' undeclared (first use this function)