View Compilation Error

0_0_2824579_20686.cpp:5: error: `max' was not declared in this scope
0_0_2824579_20686.cpp: In function `int main()':
0_0_2824579_20686.cpp:11: error: `f' undeclared (first use this function)
0_0_2824579_20686.cpp:11: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_2824579_20686.cpp:16: error: `max' undeclared (first use this function)