View Compilation Error

169265_0_26484.cpp
169265_0_26484.cpp(28) : error C2065: 'a' : undeclared identifier
169265_0_26484.cpp(28) : error C2146: syntax error : missing ';' before identifier 'm'
169265_0_26484.cpp(29) : error C2181: illegal else without matching if
169265_0_26484.cpp(30) : warning C4553: '==' : operator has no effect; did you intend '='?
169265_0_26484.cpp(32) : warning C4553: '==' : operator has no effect; did you intend '='?