View Compilation Error

130682_0_16549.cpp:4: error: `max' was not declared in this scope
130682_0_16549.cpp:4: error: `max' was not declared in this scope
130682_0_16549.cpp: In function `int main()':
130682_0_16549.cpp:13: error: `A' undeclared (first use this function)
130682_0_16549.cpp:13: error: (Each undeclared identifier is reported only once for each function it appears in.)
130682_0_16549.cpp:16: error: `B' undeclared (first use this function)