View Compilation Error

0_0_30853628_3969.cpp: In function 'int main()':
0_0_30853628_3969.cpp:43:12: error: expected ';' before '}' token
            }else if(a[i]<ave){
            ^
0_0_30853628_3969.cpp:46:27: error: 'last' was not declared in this scope
                 while(now<last)
                           ^