View Compilation Error

0_0_6156913_20062.cpp: In function `void bfs()':
0_0_6156913_20062.cpp:46: error: `min' undeclared (first use this function)
0_0_6156913_20062.cpp:46: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_6156913_20062.cpp: In function `void dfs(int, int, int)':
0_0_6156913_20062.cpp:69: error: `min' undeclared (first use this function)