View Compilation Error

0_0_3054159_12483.cpp:6: error: `max' was not declared in this scope
0_0_3054159_12483.cpp: In function `int main()':
0_0_3054159_12483.cpp:9: error: `max' undeclared (first use this function)
0_0_3054159_12483.cpp:9: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_3054159_12483.cpp:14: error: `a' undeclared (first use this function)