View Compilation Error

61705_0_18434.cpp:5: error: `max' was not declared in this scope
61705_0_18434.cpp:6: error: `max' was not declared in this scope
61705_0_18434.cpp: In function `int main()':
61705_0_18434.cpp:21: error: `c1' undeclared (first use this function)
61705_0_18434.cpp:21: error: (Each undeclared identifier is reported only once for each function it appears in.)
61705_0_18434.cpp:24: error: `c2' undeclared (first use this function)