View Compilation Error

130679_0_17189.cpp:4: error: `max' was not declared in this scope
130679_0_17189.cpp:4: error: `max' was not declared in this scope
130679_0_17189.cpp: In function `int main()':
130679_0_17189.cpp:13: error: `A' undeclared (first use this function)
130679_0_17189.cpp:13: error: (Each undeclared identifier is reported only once for each function it appears in.)
130679_0_17189.cpp:16: error: `B' undeclared (first use this function)