View Compilation Error

0_0_9274505_31780.cpp: In function `void dfs(int)':
0_0_9274505_31780.cpp:6: error: `min' undeclared (first use this function)
0_0_9274505_31780.cpp:6: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_9274505_31780.cpp: In function `int main()':
0_0_9274505_31780.cpp:16: error: `min' undeclared (first use this function)