View Compilation Error

130672_0_30145.cpp:4: error: `max' was not declared in this scope
130672_0_30145.cpp:4: error: `max' was not declared in this scope
130672_0_30145.cpp: In function `int main()':
130672_0_30145.cpp:11: error: `A' undeclared (first use this function)
130672_0_30145.cpp:11: error: (Each undeclared identifier is reported only once for each function it appears in.)
130672_0_30145.cpp:14: error: `B' undeclared (first use this function)