View Compilation Error

0_0_33861598_26121.cpp: In function 'int main()':
0_0_33861598_26121.cpp:9:3: error: expected ';' before 'int'
   int g=n;
   ^
0_0_33861598_26121.cpp:17:7: error: 'g' was not declared in this scope
       g--;}
       ^
0_0_33861598_26121.cpp:21:10: error: 'g' was not declared in this scope
   } kui+=g*a;
          ^