View Compilation Error

0_0_36407120_21337.cpp: In function 'int main()':
0_0_36407120_21337.cpp:16:21: error: 'fg' was not declared in this scope
             if(x>h){fg=1;break;}
                     ^
0_0_36407120_21337.cpp:20:12: error: 'fg' was not declared in this scope
         if(fg)cout<<"success on day "<<day<<"\n";
            ^