View Compilation Error

0_0_38298524_14966.cpp: In function 'int main()':
0_0_38298524_14966.cpp:17:7: error: 'i' was not declared in this scope
   for(i=1;i<=n;i++)
       ^
0_0_38298524_14966.cpp:19:10: error: 'a' was not declared in this scope
    cout<<a[i];
          ^