View Compilation Error

125668_0_911.cpp:5: error: `max' was not declared in this scope
125668_0_911.cpp: In function `int main()':
125668_0_911.cpp:8: error: `max' undeclared (first use this function)
125668_0_911.cpp:8: error: (Each undeclared identifier is reported only once for each function it appears in.)
125668_0_911.cpp:9: error: `a' undeclared (first use this function)