View Compilation Error

0_0_38441649_8935.cpp:8:1: error: expected ',' or ';' before 'll'
 ll a[N];
 ^
0_0_38441649_8935.cpp: In function 'int main()':
0_0_38441649_8935.cpp:14:14: error: 'a' was not declared in this scope
         cin>>a[i];
              ^
0_0_38441649_8935.cpp:16:14: error: 'a' was not declared in this scope
         sort(a+1,a+n+1);
              ^