View Compilation Error

0_0_1772470_4854.cpp: In function `void dfs(int, int)':
0_0_1772470_4854.cpp:23: error: `min' undeclared (first use this function)
0_0_1772470_4854.cpp:23: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_1772470_4854.cpp: In function `int main()':
0_0_1772470_4854.cpp:54: error: `min' undeclared (first use this function)