View Compilation Error

0_0_1171012_8251.cpp: In function `void DFS(int, int, int)':
0_0_1171012_8251.cpp:30: error: `max' undeclared (first use this function)
0_0_1171012_8251.cpp:30: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_1171012_8251.cpp: In function `int main()':
0_0_1171012_8251.cpp:45: error: name lookup of `i' changed for new ISO `for' scoping
0_0_1171012_8251.cpp:43: error:   using obsolete binding at `i'
0_0_1171012_8251.cpp:50: error: `max' undeclared (first use this function)