Run id: 5900

Main.cc: In function 'int main()':
Main.cc:9:9: error: 'z' was not declared in this scope
         z=z+(h*2);
         ^
Main.cc:11:22: error: 'z' was not declared in this scope
     printf("%.6lf\n",z);
                      ^
Main.cc:6:12: warning: unused variable 'n' [-Wunused-variable]
     double n=100;
            ^